diff --git a/kernel/model/attribute_view.go b/kernel/model/attribute_view.go
index a2de70a76..a89c0c19f 100644
--- a/kernel/model/attribute_view.go
+++ b/kernel/model/attribute_view.go
@@ -246,15 +246,21 @@ func GetBlockAttributeViewKeys(blockID string) (ret []*BlockAttributeViewKeys) {
 					if nil != destAv {
 						for _, bID := range relVal.Relation.BlockIDs {
 							destVal := destAv.GetValue(kv.Key.Rollup.KeyID, bID)
-							if nil != destVal {
-								if av.KeyTypeNumber == destVal.Type {
-									destVal.Number.Format = kv.Key.NumberFormat
-									destVal.Number.FormatNumber()
+							if nil == destVal {
+								destKey, _ := destAv.GetKey(kv.Key.Rollup.KeyID)
+								if nil == destKey {
+									continue
 								}
 
-								kv.Values[0].Rollup.Contents = append(kv.Values[0].Rollup.Contents, destVal.String())
+								destVal = treenode.GetAttributeViewDefaultValue(ast.NewNodeID(), kv.Key.Rollup.KeyID, blockID, destKey.Type)
 							}
 
+							if av.KeyTypeNumber == destVal.Type {
+								destVal.Number.Format = kv.Key.NumberFormat
+								destVal.Number.FormatNumber()
+							}
+
+							kv.Values[0].Rollup.Contents = append(kv.Values[0].Rollup.Contents, destVal.String())
 							kv.Values[0].Rollup.RenderContents(kv.Key.Rollup.Calc)
 						}
 					}
@@ -814,7 +820,12 @@ func renderAttributeViewTable(attrView *av.AttributeView, view *av.View) (ret *a
 				for _, blockID := range relVal.Relation.BlockIDs {
 					destVal := destAv.GetValue(rollupKey.Rollup.KeyID, blockID)
 					if nil == destVal {
-						continue
+						destKey, _ := destAv.GetKey(rollupKey.Rollup.KeyID)
+						if nil == destKey {
+							continue
+						}
+
+						destVal = treenode.GetAttributeViewDefaultValue(ast.NewNodeID(), rollupKey.Rollup.KeyID, blockID, destKey.Type)
 					}
 					if av.KeyTypeNumber == destVal.Type {
 						destVal.Number.Format = rollupKey.NumberFormat
diff --git a/kernel/treenode/node.go b/kernel/treenode/node.go
index 338fe2112..97ed0848a 100644
--- a/kernel/treenode/node.go
+++ b/kernel/treenode/node.go
@@ -777,7 +777,12 @@ func renderAttributeViewTable(attrView *av.AttributeView, view *av.View) (ret *a
 				for _, blockID := range relVal.Relation.BlockIDs {
 					destVal := destAv.GetValue(rollupKey.Rollup.KeyID, blockID)
 					if nil == destVal {
-						continue
+						destKey, _ := destAv.GetKey(rollupKey.Rollup.KeyID)
+						if nil == destKey {
+							continue
+						}
+
+						destVal = GetAttributeViewDefaultValue(ast.NewNodeID(), rollupKey.Rollup.KeyID, blockID, destKey.Type)
 					}
 					if av.KeyTypeNumber == destVal.Type {
 						destVal.Number.Format = rollupKey.NumberFormat
@@ -841,8 +846,10 @@ func renderAttributeViewTable(attrView *av.AttributeView, view *av.View) (ret *a
 
 func FillAttributeViewTableCellNilValue(tableCell *av.TableCell, rowID, colID string) {
 	if nil == tableCell.Value {
-		tableCell.Value = &av.Value{ID: tableCell.ID, KeyID: colID, BlockID: rowID, Type: tableCell.ValueType}
+		tableCell.Value = GetAttributeViewDefaultValue(tableCell.ID, colID, rowID, tableCell.ValueType)
+		return
 	}
+
 	tableCell.Value.Type = tableCell.ValueType
 	switch tableCell.ValueType {
 	case av.KeyTypeText:
@@ -908,6 +915,43 @@ func FillAttributeViewTableCellNilValue(tableCell *av.TableCell, rowID, colID st
 	}
 }
 
+func GetAttributeViewDefaultValue(valueID, keyID, blockID string, typ av.KeyType) (ret *av.Value) {
+	ret = &av.Value{ID: valueID, KeyID: keyID, BlockID: blockID, Type: typ}
+	switch typ {
+	case av.KeyTypeText:
+		ret.Text = &av.ValueText{}
+	case av.KeyTypeNumber:
+		ret.Number = &av.ValueNumber{}
+	case av.KeyTypeDate:
+		ret.Date = &av.ValueDate{}
+	case av.KeyTypeSelect:
+		ret.MSelect = []*av.ValueSelect{}
+	case av.KeyTypeMSelect:
+		ret.MSelect = []*av.ValueSelect{}
+	case av.KeyTypeURL:
+		ret.URL = &av.ValueURL{}
+	case av.KeyTypeEmail:
+		ret.Email = &av.ValueEmail{}
+	case av.KeyTypePhone:
+		ret.Phone = &av.ValuePhone{}
+	case av.KeyTypeMAsset:
+		ret.MAsset = []*av.ValueAsset{}
+	case av.KeyTypeTemplate:
+		ret.Template = &av.ValueTemplate{}
+	case av.KeyTypeCreated:
+		ret.Created = &av.ValueCreated{}
+	case av.KeyTypeUpdated:
+		ret.Updated = &av.ValueUpdated{}
+	case av.KeyTypeCheckbox:
+		ret.Checkbox = &av.ValueCheckbox{}
+	case av.KeyTypeRelation:
+		ret.Relation = &av.ValueRelation{}
+	case av.KeyTypeRollup:
+		ret.Rollup = &av.ValueRollup{}
+	}
+	return
+}
+
 func renderTemplateCol(ial map[string]string, tplContent string, rowValues []*av.KeyValues) string {
 	if "" == ial["id"] {
 		block := getRowBlockValue(rowValues)