diff --git a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
index dc3f9def3d..4c2d309b9f 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
@@ -1495,6 +1495,9 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true)
     public static boolean enable_query_queue = true;
 
+    @ConfField(mutable = true)
+    public static boolean disable_shared_scan = false;
+
     @ConfField(mutable = false, masterOnly = true)
     public static int backend_rpc_timeout_ms = 60000; // 1 min
 
diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java b/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
index 625c923941..1affdee118 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
@@ -62,6 +62,7 @@ import org.apache.doris.planner.ScanNode;
 import org.apache.doris.planner.SetOperationNode;
 import org.apache.doris.planner.UnionNode;
 import org.apache.doris.planner.external.ExternalScanNode;
+import org.apache.doris.planner.external.FileScanNode;
 import org.apache.doris.proto.InternalService;
 import org.apache.doris.proto.InternalService.PExecPlanFragmentResult;
 import org.apache.doris.proto.InternalService.PExecPlanFragmentStartRequest;
@@ -1660,8 +1661,16 @@ public class Coordinator {
                             return scanNode.getId().asInt() == planNodeId;
                         }).findFirst();
 
+                        // disable shared scan optimization if one of conditions below is met:
+                        // 1. Use non-pipeline engine
+                        // 2. Number of scan ranges is larger than instances
+                        // 3. This fragment has a colocated scan node
+                        // 4. This fragment has a FileScanNode
+                        // 5. Disable shared scan optimization by session variable
                         if (!enablePipelineEngine || perNodeScanRanges.size() > parallelExecInstanceNum
-                                || (node.isPresent() && node.get().getShouldColoScan())) {
+                                || (node.isPresent() && node.get().getShouldColoScan())
+                                || (node.isPresent() && node.get() instanceof FileScanNode)
+                                || Config.disable_shared_scan) {
                             int expectedInstanceNum = 1;
                             if (parallelExecInstanceNum > 1) {
                                 //the scan instance num should not larger than the tablets num