diff --git a/src/main/java/com/actiontech/dble/server/handler/ExplainHandler.java b/src/main/java/com/actiontech/dble/server/handler/ExplainHandler.java
index 44b0bd2cc..1f64dd3a8 100644
--- a/src/main/java/com/actiontech/dble/server/handler/ExplainHandler.java
+++ b/src/main/java/com/actiontech/dble/server/handler/ExplainHandler.java
@@ -52,6 +52,7 @@ import java.nio.ByteBuffer;
 import java.sql.SQLException;
 import java.sql.SQLNonTransientException;
 import java.sql.SQLSyntaxErrorException;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 
@@ -270,6 +271,7 @@ public final class ExplainHandler {
     }
 
     public static void writeOutHeadAndEof(ShardingService service, RouteResultset rrs) {
+        final List<RowDataPacket> rows = getRows(service, rrs);
         ByteBuffer buffer = service.allocate();
         // writeDirectly header
         ResultSetHeaderPacket header = PacketUtil.getHeader(FIELD_COUNT);
@@ -287,20 +289,29 @@ public final class ExplainHandler {
         eof.setPacketId(service.nextPacketId());
         buffer = eof.write(buffer, service, true);
 
+        // writeDirectly rows
+        for (RowDataPacket row : rows) {
+            row.setPacketId(service.nextPacketId());
+            buffer = row.write(buffer, service, true);
+        }
+
+        // writeDirectly last eof
+        EOFRowPacket lastEof = new EOFRowPacket();
+        lastEof.setPacketId(service.nextPacketId());
+        lastEof.write(buffer, service);
+    }
+
+    private static List<RowDataPacket> getRows(ShardingService service, RouteResultset rrs) {
+        LinkedList<RowDataPacket> rows = new LinkedList<>();
         if (!rrs.isNeedOptimizer()) {
-            // writeDirectly rows
             for (RouteResultsetNode node : rrs.getNodes()) {
-                RowDataPacket row = getRow(node, service.getCharset().getResults());
-                row.setPacketId(service.nextPacketId());
-                buffer = row.write(buffer, service, true);
+                rows.add(getRow(node, service.getCharset().getResults()));
             }
         } else {
             BaseHandlerBuilder builder = buildNodes(rrs, service);
             RouteResultsetNode routeSingleNode = getTryRouteSingleNode(builder, rrs);
             if (routeSingleNode != null) {
-                RowDataPacket row = getRow(routeSingleNode, service.getCharset().getResults());
-                row.setPacketId(service.nextPacketId());
-                buffer = row.write(buffer, service, true);
+                rows.add(getRow(routeSingleNode, service.getCharset().getResults()));
             } else {
                 List<ReferenceHandlerInfo> results = ComplexQueryPlanUtil.getComplexQueryResult(builder);
                 for (ReferenceHandlerInfo result : results) {
@@ -308,17 +319,14 @@ public final class ExplainHandler {
                     row.add(StringUtil.encode(getRowStr(result.getName(), result.isIndentation()), service.getCharset().getResults()));
                     row.add(StringUtil.encode(getRowStr(result.getType(), result.isIndentation()), service.getCharset().getResults()));
                     row.add(StringUtil.encode(getRowStr(result.getRefOrSQL(), result.isIndentation()), service.getCharset().getResults()));
-                    row.setPacketId(service.nextPacketId());
-                    buffer = row.write(buffer, service, true);
+                    rows.add(row);
                 }
             }
         }
-        // writeDirectly last eof
-        EOFRowPacket lastEof = new EOFRowPacket();
-        lastEof.setPacketId(service.nextPacketId());
-        lastEof.write(buffer, service);
+        return rows;
     }
 
+
     private static String getRowStr(String content, boolean indentation) {
         String indentationStr = "------ ";
         return indentation ? indentationStr + content : content;