diff --git a/maxkey-core/src/main/java/org/maxkey/entity/Organizations.java b/maxkey-core/src/main/java/org/maxkey/entity/Organizations.java
index 68bee0171..b45bb6725 100644
--- a/maxkey-core/src/main/java/org/maxkey/entity/Organizations.java
+++ b/maxkey-core/src/main/java/org/maxkey/entity/Organizations.java
@@ -25,6 +25,13 @@ import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.Table;
 import org.apache.mybatis.jpa.persistence.JpaBaseEntity;
+
+/**
+ * root organization node,<br> id = instId or id = parentId or parentId = -1 or parentId = 0
+ * @author crystal.sea
+ *
+ */
+
 @Entity
 @Table(name = "MXK_ORGANIZATIONS")
 public class Organizations extends JpaBaseEntity implements Serializable {
diff --git a/maxkey-webs/maxkey-web-mgt/src/main/java/org/maxkey/web/contorller/OrganizationsController.java b/maxkey-webs/maxkey-web-mgt/src/main/java/org/maxkey/web/contorller/OrganizationsController.java
index 3025803f4..0ad566914 100644
--- a/maxkey-webs/maxkey-web-mgt/src/main/java/org/maxkey/web/contorller/OrganizationsController.java
+++ b/maxkey-webs/maxkey-web-mgt/src/main/java/org/maxkey/web/contorller/OrganizationsController.java
@@ -171,7 +171,11 @@ public class OrganizationsController {
 				treeNode.setLeaf(true);
 				treeAttributes.addNode(treeNode);
 				nodeCount ++;
-				if(org.getId().equalsIgnoreCase(currentUser.getInstId())) {
+				//root organization node, id = instId or id = parentId or parentId = -1 or parentId = 0
+				if(org.getId().equalsIgnoreCase(currentUser.getInstId())
+						||org.getId().equalsIgnoreCase(org.getParentId())
+						||org.getParentId().equalsIgnoreCase("0")
+						||org.getParentId().equalsIgnoreCase("-1")) {
 					treeNode.setExpanded(true);
 					treeNode.setLeaf(false);
 					treeAttributes.setRootNode(treeNode);