diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/CodcrProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/CodcrProcessor.java
new file mode 100644
index 00000000..11e8a591
--- /dev/null
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/CodcrProcessor.java
@@ -0,0 +1,30 @@
+package com.yfd.platform.qgc_export.processor;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * 电导率(COND) 指标处理器
+ */
+@Component
+public class CodcrProcessor extends WqIndicatorProcessor {
+
+    @Override
+    public String getFieldName() {
+        return "CODCR";
+    }
+
+    @Override
+    public String getSheetName() {
+        return "水质(化学需氧量)";
+    }
+
+    @Override
+    public int getDecimalPlaces() {
+        return 2;
+    }
+
+    @Override
+    public int getOrder() {
+        return 12;
+    }
+}
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/CondProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/CondProcessor.java
index f9b70e9d..6d5b4da5 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/CondProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/CondProcessor.java
@@ -24,7 +24,7 @@ public class CondProcessor extends WqIndicatorProcessor {
     }
 
     @Override
-    public String getSttpType() {
-        return "WQ";
+    public int getOrder() {
+        return 13;
     }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DoxProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DoxProcessor.java
index 5d3723da..023ce588 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DoxProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DoxProcessor.java
@@ -24,7 +24,7 @@ public class DoxProcessor extends WqIndicatorProcessor {
     }
 
     @Override
-    public String getSttpType() {
-        return "WQ";
+    public int getOrder() {
+        return 11;
     }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtProcessor.java
index 87b7f550..d8544f3a 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtProcessor.java
@@ -19,4 +19,9 @@ public class DwtProcessor extends WtrvIndicatorProcessor {
     public String getSheetName() {
         return "出库水温";
     }
+
+    @Override
+    public int getOrder() {
+        return 8;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtVariationProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtVariationProcessor.java
index 46ac84d5..87835dbf 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtVariationProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DwtVariationProcessor.java
@@ -24,4 +24,9 @@ public class DwtVariationProcessor extends WtrvIndicatorProcessor {
     public boolean isVariation() {
         return true;
     }
+
+    @Override
+    public int getOrder() {
+        return 9;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzProcessor.java
index 83a8c58e..a645d9de 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzProcessor.java
@@ -17,4 +17,9 @@ public class DzProcessor extends HydropwIndicatorProcessor {
     public String getSheetName() {
         return "坝下水位";
     }
+
+    @Override
+    public int getOrder() {
+        return 3;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzVariationProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzVariationProcessor.java
index f34ce869..da0e26bb 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzVariationProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/DzVariationProcessor.java
@@ -22,4 +22,9 @@ public class DzVariationProcessor extends HydropwIndicatorProcessor {
     public boolean isVariation() {
         return true;
     }
+
+    @Override
+    public int getOrder() {
+        return 4;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/ExportIndicatorProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/ExportIndicatorProcessor.java
index c24728f9..c182b0c4 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/ExportIndicatorProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/ExportIndicatorProcessor.java
@@ -56,6 +56,14 @@ public interface ExportIndicatorProcessor {
         return false;
     }
 
+    /**
+     * Sheet 排序号，升序排列。
+     * 数值越小越靠前，同组指标标准格式应排在日变幅格式之前。
+     */
+    default int getOrder() {
+        return 100;
+    }
+
     /**
      * 查询原始数据
      *
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/PhProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/PhProcessor.java
index e4c123c2..8442bda4 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/PhProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/PhProcessor.java
@@ -24,7 +24,7 @@ public class PhProcessor extends WqIndicatorProcessor {
     }
 
     @Override
-    public String getSttpType() {
-        return "WQ";
+    public int getOrder() {
+        return 15;
     }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/QProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/QProcessor.java
index 031d7361..0446c615 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/QProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/QProcessor.java
@@ -9,17 +9,14 @@ import org.springframework.stereotype.Component;
 public class QProcessor extends RiverIndicatorProcessor {
 
     @Override
-    public String getFieldName() {
-        return "Q";
-    }
+    public String getFieldName() { return "Q"; }
 
     @Override
-    public String getSheetName() {
-        return "流量(m³/s)";
-    }
+    public String getSheetName() { return "流量(m³/s)"; }
 
     @Override
-    public String getSttpType() {
-        return "ZQ";
-    }
+    public String getSttpType() { return "ZQ"; }
+
+    @Override
+    public int getOrder() { return 32; }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzProcessor.java
index c00dd40f..42e4ccea 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzProcessor.java
@@ -17,4 +17,9 @@ public class RzProcessor extends HydropwIndicatorProcessor {
     public String getSheetName() {
         return "坝上水位";
     }
+
+    @Override
+    public int getOrder() {
+        return 1;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzVariationProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzVariationProcessor.java
index f7ed04d9..f74d3627 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzVariationProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/RzVariationProcessor.java
@@ -22,4 +22,9 @@ public class RzVariationProcessor extends HydropwIndicatorProcessor {
     public boolean isVariation() {
         return true;
     }
+
+    @Override
+    public int getOrder() {
+        return 2;
+    }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/TuProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/TuProcessor.java
index babef596..36e67231 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/TuProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/TuProcessor.java
@@ -24,7 +24,7 @@ public class TuProcessor extends WqIndicatorProcessor {
     }
 
     @Override
-    public String getSttpType() {
-        return "WQ";
+    public int getOrder() {
+        return 14;
     }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/VProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/VProcessor.java
index 74438880..330c68fb 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/VProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/VProcessor.java
@@ -9,17 +9,14 @@ import org.springframework.stereotype.Component;
 public class VProcessor extends RiverIndicatorProcessor {
 
     @Override
-    public String getFieldName() {
-        return "V";
-    }
+    public String getFieldName() { return "V"; }
 
     @Override
-    public String getSheetName() {
-        return "流速(m/s)";
-    }
+    public String getSheetName() { return "流速(m/s)"; }
 
     @Override
-    public String getSttpType() {
-        return "ZQ";
-    }
+    public String getSttpType() { return "ZQ"; }
+
+    @Override
+    public int getOrder() { return 33; }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/WtmpProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/WtmpProcessor.java
index c18a1357..2217aa2d 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/WtmpProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/WtmpProcessor.java
@@ -24,8 +24,7 @@ public class WtmpProcessor extends WqIndicatorProcessor {
     }
 
     @Override
-    public String getSttpType() {
-        return "WQ";
+    public int getOrder() {
+        return 10;
     }
-
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/processor/ZProcessor.java b/backend/src/main/java/com/yfd/platform/qgc_export/processor/ZProcessor.java
index 32e5e8b3..abf293d8 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/processor/ZProcessor.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/processor/ZProcessor.java
@@ -9,17 +9,14 @@ import org.springframework.stereotype.Component;
 public class ZProcessor extends RiverIndicatorProcessor {
 
     @Override
-    public String getFieldName() {
-        return "Z";
-    }
+    public String getFieldName() { return "Z"; }
 
     @Override
-    public String getSheetName() {
-        return "水位(m)";
-    }
+    public String getSheetName() { return "水位(m)"; }
 
     @Override
-    public String getSttpType() {
-        return "ZQ";
-    }
+    public String getSttpType() { return "ZQ"; }
+
+    @Override
+    public int getOrder() { return 31; }
 }
diff --git a/backend/src/main/java/com/yfd/platform/qgc_export/service/impl/QgcExportServiceImpl.java b/backend/src/main/java/com/yfd/platform/qgc_export/service/impl/QgcExportServiceImpl.java
index e21b57ed..bfd3ff67 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_export/service/impl/QgcExportServiceImpl.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_export/service/impl/QgcExportServiceImpl.java
@@ -86,6 +86,8 @@ public class QgcExportServiceImpl implements IQgcExportService {
     @Resource
     private WtmpProcessor wtmpProcessor;
     @Resource
+    private CodcrProcessor codcrProcessor;
+    @Resource
     private PhProcessor phProcessor;
     @Resource
     private DoxProcessor doxProcessor;
@@ -288,6 +290,7 @@ public class QgcExportServiceImpl implements IQgcExportService {
         Map<String, ExportIndicatorProcessor> processorMap = new LinkedHashMap<>();
         // WQ 在前
         processorMap.put("wtmp", wtmpProcessor);
+        processorMap.put("codcr", codcrProcessor);
         processorMap.put("ph", phProcessor);
         processorMap.put("dox", doxProcessor);
         processorMap.put("cond", condProcessor);
@@ -302,7 +305,7 @@ public class QgcExportServiceImpl implements IQgcExportService {
         for (String field : dataFields) {
             String lower = field.trim().toLowerCase();
             if ("wq".equals(lower)) {
-                expanded.addAll(List.of("wtmp", "ph", "dox", "cond", "tu"));
+                expanded.addAll(List.of("wtmp","codcr", "ph", "dox", "cond", "tu"));
             } else {
                 expanded.add(lower);
             }
@@ -345,6 +348,7 @@ public class QgcExportServiceImpl implements IQgcExportService {
                 result.add(p);
             }
         }
+        result.sort(Comparator.comparingInt(ExportIndicatorProcessor::getOrder));
         return result;
     }