diff --git a/fe/fe-core/src/main/java/org/apache/doris/alter/AlterJobV2.java b/fe/fe-core/src/main/java/org/apache/doris/alter/AlterJobV2.java
index 764a0b0ae853bd..1d0f69f7044bd3 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/alter/AlterJobV2.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/alter/AlterJobV2.java
@@ -58,7 +58,9 @@ public boolean isFinalState() {
     }
 
     public enum JobType {
-        ROLLUP, SCHEMA_CHANGE
+        // Must not remove it or change the order, because catalog depend on it to traverse the image
+        // and load meta data
+        ROLLUP, SCHEMA_CHANGE, DECOMMISSION_BACKEND
     }
 
     @SerializedName(value = "type")
diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/Catalog.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/Catalog.java
index fa7fdc757216ae..df61e2b18af2dc 100755
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/Catalog.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/Catalog.java
@@ -2113,6 +2113,9 @@ public long saveAlterJob(CountingDataOutputStream dos, long checksum, JobType ty
             alterJobsV2 = this.getMaterializedViewHandler().getAlterJobsV2();
         } else if (type == JobType.SCHEMA_CHANGE) {
             alterJobsV2 = this.getSchemaChangeHandler().getAlterJobsV2();
+        } else if (type == JobType.DECOMMISSION_BACKEND) {
+            // Load alter job need decommission backend type to load image
+            alterJobsV2 = Maps.newHashMap();
         } else {
             throw new IOException("Invalid alter job type: " + type.name());
         }