diff --git a/api/controllers/console/datasets/datasets.py b/api/controllers/console/datasets/datasets.py
index e68273afa6..ceaa9ec4fa 100644
--- a/api/controllers/console/datasets/datasets.py
+++ b/api/controllers/console/datasets/datasets.py
@@ -283,6 +283,15 @@ class DatasetApi(Resource):
             location="json",
             help="Invalid external knowledge api id.",
         )
+        
+        parser.add_argument(
+            "icon_info",
+            type=dict,
+            required=False,
+            nullable=True,
+            location="json",
+            help="Invalid icon info.",
+        )
         args = parser.parse_args()
         data = request.get_json()
 
diff --git a/api/core/workflow/nodes/knowledge_index/knowledge_index_node.py b/api/core/workflow/nodes/knowledge_index/knowledge_index_node.py
index 1195df1b7f..c63d837106 100644
--- a/api/core/workflow/nodes/knowledge_index/knowledge_index_node.py
+++ b/api/core/workflow/nodes/knowledge_index/knowledge_index_node.py
@@ -1,18 +1,21 @@
 import datetime
 import logging
 from collections.abc import Mapping
+import time
 from typing import Any, cast
 
+from sqlalchemy import func
+
 from core.app.entities.app_invoke_entities import InvokeFrom
 from core.rag.index_processor.index_processor_factory import IndexProcessorFactory
 from core.rag.retrieval.retrieval_methods import RetrievalMethod
 from core.workflow.entities.node_entities import NodeRunResult
 from core.workflow.entities.variable_pool import VariablePool
+from core.workflow.entities.workflow_node_execution import WorkflowNodeExecutionStatus
 from core.workflow.enums import SystemVariableKey
 from core.workflow.nodes.enums import NodeType
 from extensions.ext_database import db
 from models.dataset import Dataset, Document, DocumentSegment
-from core.workflow.entities.workflow_node_execution import WorkflowNodeExecutionStatus
 
 from ..base import BaseNode
 from .entities import KnowledgeIndexNodeData
@@ -111,13 +114,19 @@ class KnowledgeIndexNode(BaseNode[KnowledgeIndexNodeData]):
         document = db.session.query(Document).filter_by(id=document_id.value).first()
         if not document:
             raise KnowledgeIndexNodeError(f"Document {document_id.value} not found.")
-
+        # chunk nodes by chunk size
+        indexing_start_at = time.perf_counter()
         index_processor = IndexProcessorFactory(dataset.chunk_structure).init_index_processor()
         index_processor.index(dataset, document, chunks)
-
+        indexing_end_at = time.perf_counter()
+        document.indexing_latency = indexing_end_at - indexing_start_at
         # update document status
         document.indexing_status = "completed"
         document.completed_at = datetime.datetime.now(datetime.UTC).replace(tzinfo=None)
+        document.word_count = db.session.query(func.sum(DocumentSegment.word_count)).filter(
+            DocumentSegment.document_id == document.id,
+            DocumentSegment.dataset_id == dataset.id,
+        ).scalar()
         db.session.add(document)
         # update document segment status
         db.session.query(DocumentSegment).filter(
diff --git a/api/fields/dataset_fields.py b/api/fields/dataset_fields.py
index 2871b3ec16..aa147331d4 100644
--- a/api/fields/dataset_fields.py
+++ b/api/fields/dataset_fields.py
@@ -88,6 +88,8 @@ dataset_detail_fields = {
     "chunk_structure": fields.String,
     "icon_info": fields.Nested(icon_info_fields),
     "is_published": fields.Boolean,
+    "total_documents": fields.Integer,
+    "total_available_documents": fields.Integer,
 }
 
 dataset_query_detail_fields = {
diff --git a/api/models/dataset.py b/api/models/dataset.py
index d2fdd5e900..85c10c06d7 100644
--- a/api/models/dataset.py
+++ b/api/models/dataset.py
@@ -311,6 +311,19 @@ class DatasetProcessRule(Base):
             return json.loads(self.rules) if self.rules else None
         except JSONDecodeError:
             return None
+        
+    @property
+    def total_documents(self):
+        return db.session.query(func.count(Document.id)).filter(Document.dataset_id == self.dataset_id).scalar()
+
+    @property
+    def total_available_documents(self):
+        return db.session.query(func.count(Document.id)).filter(
+            Document.dataset_id == self.dataset_id,
+            Document.indexing_status == "completed",
+            Document.enabled == True,
+            Document.archived == False,
+        ).scalar()
 
 
 class Document(Base):
diff --git a/api/services/dataset_service.py b/api/services/dataset_service.py
index 133e3765f7..ab16081afc 100644
--- a/api/services/dataset_service.py
+++ b/api/services/dataset_service.py
@@ -484,6 +484,9 @@ class DatasetService:
             # update Retrieval model
             filtered_data["retrieval_model"] = data["retrieval_model"]
 
+            # update icon info
+            if data.get("icon_info"):
+                filtered_data["icon_info"] = data.get("icon_info")
             db.session.query(Dataset).filter_by(id=dataset_id).update(filtered_data)
 
             db.session.commit()