diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommand.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommand.java
index 673e8f1700b0b1..47f5c9ec8fa6ec 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommand.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommand.java
@@ -212,13 +212,15 @@ private void updateTableRefInfos() throws AnalysisException {
      * analyzeProperties
      */
     public void analyzeProperties() throws AnalysisException {
+        Map<String, String> copiedProperties = Maps.newHashMap(properties);
+
         // timeout
-        if (properties.containsKey("timeout")) {
+        if (copiedProperties.containsKey(PROP_TIMEOUT)) {
             try {
-                timeoutMs = Long.valueOf(properties.get(PROP_TIMEOUT));
+                timeoutMs = Long.valueOf(copiedProperties.get(PROP_TIMEOUT));
             } catch (NumberFormatException e) {
                 ErrorReport.reportAnalysisException(ErrorCode.ERR_COMMON_ERROR,
-                        "Invalid timeout format: " + properties.get(PROP_TIMEOUT));
+                        "Invalid timeout format: " + copiedProperties.get(PROP_TIMEOUT));
             }
 
             if (timeoutMs * 1000 < MIN_TIMEOUT_MS) {
@@ -226,13 +228,11 @@ public void analyzeProperties() throws AnalysisException {
             }
 
             timeoutMs = timeoutMs * 1000;
-            properties.remove(PROP_TIMEOUT);
+            copiedProperties.remove(PROP_TIMEOUT);
         } else {
             timeoutMs = Config.backup_job_default_timeout_ms;
         }
 
-        Map<String, String> copiedProperties = Maps.newHashMap(properties);
-
         // allow load
         allowLoad = eatBooleanProperty(copiedProperties, PROP_ALLOW_LOAD, allowLoad);
 
diff --git a/fe/fe-core/src/test/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommandTest.java b/fe/fe-core/src/test/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommandTest.java
index bc8a8f091e9080..4d2e982747a24a 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommandTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/nereids/trees/plans/commands/RestoreCommandTest.java
@@ -29,6 +29,7 @@
 import org.apache.doris.nereids.trees.plans.commands.info.TableRefInfo;
 import org.apache.doris.qe.ConnectContext;
 
+import com.google.common.collect.ImmutableMap;
 import mockit.Expectations;
 import mockit.Mocked;
 import org.apache.commons.collections4.map.HashedMap;
@@ -136,4 +137,19 @@ public void testValidateNormal() {
         RestoreCommand command5 = new RestoreCommand(labelNameInfo, repoName2, tableRefInfos, properties2, isExclude);
         Assertions.assertThrows(DdlException.class, () -> command5.validate(connectContext));
     }
+
+    @Test
+    public void testAnalyzePropertiesWithImmutableMap() {
+        LabelNameInfo labelNameInfo = new LabelNameInfo(dbName, "label0");
+        Map<String, String> properties = ImmutableMap.of(
+                "timeout", "86400",
+                "backup_timestamp", "2025-06-12-11-15-20");
+
+        RestoreCommand command = new RestoreCommand(labelNameInfo, "testRepo",
+                new ArrayList<>(), properties, false);
+
+        Assertions.assertDoesNotThrow(command::analyzeProperties);
+        Assertions.assertEquals(86400L * 1000, command.getTimeoutMs());
+        Assertions.assertEquals("2025-06-12-11-15-20", command.getBackupTimestamp());
+    }
 }