diff --git a/pkg/common/common.go b/pkg/common/common.go
index 284baa04e3866..deb29f97a70db 100644
--- a/pkg/common/common.go
+++ b/pkg/common/common.go
@@ -23,6 +23,7 @@ import (
 	"strings"
 
 	"github.com/cockroachdb/errors"
+	"github.com/samber/lo"
 
 	"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
 	"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
@@ -286,7 +287,7 @@ func DatabaseLevelResourceGroups(kvs []*commonpb.KeyValuePair) ([]string, error)
 				return nil, invalidPropValue
 			}
 
-			return rgs, nil
+			return lo.Map(rgs, func(rg string, _ int) string { return strings.TrimSpace(rg) }), nil
 		}
 	}
 
@@ -321,7 +322,7 @@ func CollectionLevelResourceGroups(kvs []*commonpb.KeyValuePair) ([]string, erro
 				return nil, invalidPropValue
 			}
 
-			return rgs, nil
+			return lo.Map(rgs, func(rg string, _ int) string { return strings.TrimSpace(rg) }), nil
 		}
 	}
 
diff --git a/pkg/util/paramtable/param_item.go b/pkg/util/paramtable/param_item.go
index 92e0fcc5bff83..1b25d0095785d 100644
--- a/pkg/util/paramtable/param_item.go
+++ b/pkg/util/paramtable/param_item.go
@@ -22,6 +22,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/samber/lo"
 	"go.uber.org/atomic"
 
 	"github.com/milvus-io/milvus/pkg/config"
@@ -335,7 +336,8 @@ func getAsStrings(v string) []string {
 		return []string{}
 	}
 	return getAndConvert(v, func(value string) ([]string, error) {
-		return strings.Split(value, ","), nil
+		ret := strings.Split(value, ",")
+		return lo.Map(ret, func(rg string, _ int) string { return strings.TrimSpace(rg) }), nil
 	}, []string{})
 }