diff --git a/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/domain/IndexNodeScope.java b/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/domain/IndexNodeScope.java
index 556d53d9..b527c2d3 100644
--- a/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/domain/IndexNodeScope.java
+++ b/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/domain/IndexNodeScope.java
@@ -2,7 +2,6 @@
 package cn.axzo.nanopart.doc.api.domain;
 
 import cn.axzo.nanopart.doc.api.enums.DatabaseScope;
-import cn.axzo.nanopart.doc.api.enums.DatabaseType;
 import cn.axzo.nanopart.doc.api.enums.IndexNodeContext;
 
 /**
@@ -17,7 +16,7 @@ public interface IndexNodeScope {
 	}
 
 	default String scopeCode() {
-		return "";
+		return TREE_ROOT_NODE_CODE;
 	}
 
 	default boolean isChildrenNameDuplicatable() {
@@ -40,6 +39,10 @@ public interface IndexNodeScope {
 		}
 	}
 
+	String TREE_ROOT_NODE_CODE = "";
+
+	Long TREE_ROOT_NODE_ID = 0L;
+
 	IndexNodeScope FILE_TEMPLATE = () -> IndexNodeContext.FILE_TEMPLATE;
 
 	IndexNodeScope TEMPLATE_DATABASE = () -> IndexNodeContext.TEMPLATE_DATABASE;
diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/entity/IndexNode.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/entity/IndexNode.java
index 38a443db..da61ede9 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/entity/IndexNode.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/entity/IndexNode.java
@@ -34,9 +34,6 @@ public class IndexNode extends BaseEntity<IndexNode> implements NodeValue, Index
 
 	// !! essentially, these are all tree attributes of the data model
 
-	public static final String TREE_ROOT_NOE_CODE = "";
-	public static final Long TREE_ROOT_NODE_ID = 0L;
-
 	/**
 	 * 爷节点id
 	 */
@@ -158,6 +155,10 @@ public class IndexNode extends BaseEntity<IndexNode> implements NodeValue, Index
 		return id.equals(node.id);
 	}
 
+	public boolean isRoot() {
+		return TREE_ROOT_NODE_CODE.equals(parentCode);
+	}
+
 	@JsonIgnore
 	@JSONField(serialize = false, deserialize = false)
 	public String getFullFileName() {
diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
index 1a4ab86a..9411ac20 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
@@ -57,8 +57,8 @@ class IndexSupport {
 		IndexNode child = new IndexNode();
 		IndexNode.setScope(child, create.nodeScope());
 		child.setCode(UUIDUtil.uuidString());
-		child.setParentId(parent == null ? IndexNode.TREE_ROOT_NODE_ID : parent.getId());
-		child.setParentCode(parent == null ? IndexNode.TREE_ROOT_NOE_CODE : parent.getCode());
+		child.setParentId(parent == null ? IndexNodeScope.TREE_ROOT_NODE_ID : parent.getId());
+		child.setParentCode(parent == null ? IndexNodeScope.TREE_ROOT_NODE_CODE : parent.getCode());
 		child.setRootCode(parent == null ? child.getCode() : parent.getRootCode());
 		child.setName(create.name());
 		child.setBizCode(create.bizCode());
@@ -92,7 +92,7 @@ class IndexSupport {
 		BizAssertions.assertTrue(
 			indexNodeDao.validChildrenCount(parent.getCode()) < docProps.getIndexNodeMaxChildrenSize(),
 			"创建失败, 子节点数量不能超过 {}", docProps.getIndexNodeMaxChildrenSize());
-		if (parent.isLimitChildrenCount())
+		if (!parent.isRoot() && parent.isLimitChildrenCount())
 			BizAssertions.assertTrue(parent.path().depth() < docProps.getIndexNodeMaxDepth(), //
 				"节点深度超过限制{}, 无法再创建新节点", docProps.getIndexNodeMaxDepth());
 	}
diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
index 7f69aa6d..50b64c91 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/copy/ConnectNodeVisitor.java
@@ -7,6 +7,7 @@ import cn.axzo.maokai.api.vo.response.tree.Node;
 import cn.axzo.maokai.api.vo.response.tree.ValueNode;
 import cn.axzo.maokai.api.vo.response.tree.ValueNodeRecursiveVisitor;
 import cn.axzo.maokai.api.vo.response.tree.WalkingDecision;
+import cn.axzo.nanopart.doc.api.domain.IndexNodeScope;
 import cn.axzo.nanopart.doc.entity.IndexNode;
 import cn.axzo.nanopart.doc.entity.domain.Path;
 import lombok.RequiredArgsConstructor;
@@ -28,10 +29,10 @@ public class ConnectNodeVisitor extends ValueNodeRecursiveVisitor<IndexNode> {
 			copiedRoot = copy;
 		copy.setRootCode(destParentNode == null ? copiedRoot.getCode() : destParentNode.getRootCode());
 		copy.setParentId(node.getParent().isTreeRoot()
-				? destParentNode == null ? IndexNode.TREE_ROOT_NODE_ID : destParentNode.getId()
+				? destParentNode == null ? IndexNodeScope.TREE_ROOT_NODE_ID : destParentNode.getId()
 				: node.getParent().<IndexNode> tryGetValue().getId());
 		copy.setParentCode(node.getParent().isTreeRoot() //
-				? destParentNode == null ? IndexNode.TREE_ROOT_NOE_CODE : destParentNode.getCode()
+				? destParentNode == null ? IndexNodeScope.TREE_ROOT_NODE_CODE : destParentNode.getCode()
 				: node.getParent().<IndexNode> tryGetValue().getCode());
 		copy.setPath(buildPathFor(node).toString());
 		return WalkingDecision.CONTINUE;