diff --git a/internal/proxy/task_search.go b/internal/proxy/task_search.go
index 6b469ff544..8dff68401e 100644
--- a/internal/proxy/task_search.go
+++ b/internal/proxy/task_search.go
@@ -414,6 +414,9 @@ func (t *searchTask) initAdvancedSearchRequest(ctx context.Context) error {
 		if err != nil {
 			return err
 		}
+		if typeutil.IsFieldSparseFloatVector(t.schema.CollectionSchema, internalSubReq.FieldId) {
+			metrics.ProxySearchSparseNumNonZeros.WithLabelValues(strconv.FormatInt(paramtable.GetNodeID(), 10), t.collectionName, metrics.HybridSearchLabel, strconv.FormatInt(internalSubReq.FieldId, 10)).Observe(float64(typeutil.EstimateSparseVectorNNZFromPlaceholderGroup(internalSubReq.PlaceholderGroup, int(internalSubReq.GetNq()))))
+		}
 		t.SearchRequest.SubReqs[index] = internalSubReq
 		t.queryInfos[index] = queryInfo
 		log.Debug("proxy init search request",
@@ -491,7 +494,9 @@ func (t *searchTask) initSearchRequest(ctx context.Context) error {
 	if err != nil {
 		return err
 	}
-	metrics.ProxySearchSparseNumNonZeros.WithLabelValues(strconv.FormatInt(paramtable.GetNodeID(), 10), t.collectionName).Observe(float64(typeutil.EstimateSparseVectorNNZFromPlaceholderGroup(t.request.PlaceholderGroup, int(t.request.GetNq()))))
+	if typeutil.IsFieldSparseFloatVector(t.schema.CollectionSchema, t.SearchRequest.FieldId) {
+		metrics.ProxySearchSparseNumNonZeros.WithLabelValues(strconv.FormatInt(paramtable.GetNodeID(), 10), t.collectionName, metrics.SearchLabel, strconv.FormatInt(t.SearchRequest.FieldId, 10)).Observe(float64(typeutil.EstimateSparseVectorNNZFromPlaceholderGroup(t.request.PlaceholderGroup, int(t.request.GetNq()))))
+	}
 	t.SearchRequest.PlaceholderGroup = t.request.PlaceholderGroup
 	t.SearchRequest.Topk = queryInfo.GetTopk()
 	t.SearchRequest.MetricType = queryInfo.GetMetricType()
diff --git a/internal/querynodev2/delegator/delegator_data.go b/internal/querynodev2/delegator/delegator_data.go
index 43ccde5b9a..89cf5a1b4f 100644
--- a/internal/querynodev2/delegator/delegator_data.go
+++ b/internal/querynodev2/delegator/delegator_data.go
@@ -1030,7 +1030,7 @@ func (sd *shardDelegator) buildBM25IDF(req *internalpb.SearchRequest) (float64,
 	}
 
 	for _, idf := range idfSparseVector {
-		metrics.QueryNodeSearchFTSNumTokens.WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(sd.collectionID)).Observe(float64(typeutil.SparseFloatRowElementCount(idf)))
+		metrics.QueryNodeSearchFTSNumTokens.WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(sd.collectionID), fmt.Sprint(req.GetFieldId())).Observe(float64(typeutil.SparseFloatRowElementCount(idf)))
 	}
 
 	err = SetBM25Params(req, avgdl)
diff --git a/pkg/metrics/metrics.go b/pkg/metrics/metrics.go
index 378affb4e2..669f18b9da 100644
--- a/pkg/metrics/metrics.go
+++ b/pkg/metrics/metrics.go
@@ -94,6 +94,7 @@ const (
 	indexTaskStatusLabelName = "index_task_status"
 	msgTypeLabelName         = "msg_type"
 	collectionIDLabelName    = "collection_id"
+	fieldIDLabelName         = "field_id"
 	channelNameLabelName     = "channel_name"
 	functionLabelName        = "function_name"
 	queryTypeLabelName       = "query_type"
diff --git a/pkg/metrics/proxy_metrics.go b/pkg/metrics/proxy_metrics.go
index 2d88fac37d..c420956d4d 100644
--- a/pkg/metrics/proxy_metrics.go
+++ b/pkg/metrics/proxy_metrics.go
@@ -426,7 +426,7 @@ var (
 			Name:      "search_sparse_num_non_zeros",
 			Help:      "the number of non-zeros in each sparse search task",
 			Buckets:   buckets,
-		}, []string{nodeIDLabelName, collectionName})
+		}, []string{nodeIDLabelName, collectionName, queryTypeLabelName, fieldIDLabelName})
 
 	ProxyParseExpressionLatency = prometheus.NewHistogramVec(
 		prometheus.HistogramOpts{
diff --git a/pkg/metrics/querynode_metrics.go b/pkg/metrics/querynode_metrics.go
index b09bd138ce..9f011b5a54 100644
--- a/pkg/metrics/querynode_metrics.go
+++ b/pkg/metrics/querynode_metrics.go
@@ -360,6 +360,7 @@ var (
 		}, []string{
 			nodeIDLabelName,
 			collectionIDLabelName,
+			fieldIDLabelName,
 		})
 
 	QueryNodeSearchGroupSize = prometheus.NewHistogramVec(
diff --git a/pkg/util/typeutil/schema.go b/pkg/util/typeutil/schema.go
index bb9d6b6e59..321a6b8d41 100644
--- a/pkg/util/typeutil/schema.go
+++ b/pkg/util/typeutil/schema.go
@@ -1183,6 +1183,11 @@ func GetPrimaryFieldSchema(schema *schemapb.CollectionSchema) (*schemapb.FieldSc
 	return nil, errors.New("primary field is not found")
 }
 
+func IsFieldSparseFloatVector(schema *schemapb.CollectionSchema, fieldID int64) bool {
+	fieldSchema := GetField(schema, fieldID)
+	return fieldSchema != nil && IsSparseFloatVectorType(fieldSchema.DataType)
+}
+
 // GetPartitionKeyFieldSchema get partition field schema from collection schema
 func GetPartitionKeyFieldSchema(schema *schemapb.CollectionSchema) (*schemapb.FieldSchema, error) {
 	for _, fieldSchema := range schema.GetFields() {