diff --git a/pkg/scheduler/apis/config/validation/validation_pluginargs.go b/pkg/scheduler/apis/config/validation/validation_pluginargs.go
index e3797dc8734b9..49f1b866a212d 100644
--- a/pkg/scheduler/apis/config/validation/validation_pluginargs.go
+++ b/pkg/scheduler/apis/config/validation/validation_pluginargs.go
@@ -317,8 +317,12 @@ func ValidateNodeResourcesFitArgs(path *field.Path, args *config.NodeResourcesFi
 			allErrs = append(allErrs, field.NotSupported(strategyPath.Child("type"), args.ScoringStrategy.Type, sets.List(supportedScoringStrategyTypes)))
 		}
 		allErrs = append(allErrs, validateResources(args.ScoringStrategy.Resources, strategyPath.Child("resources"))...)
-		if args.ScoringStrategy.RequestedToCapacityRatio != nil {
-			allErrs = append(allErrs, validateFunctionShape(args.ScoringStrategy.RequestedToCapacityRatio.Shape, strategyPath.Child("shape"))...)
+		if args.ScoringStrategy.Type == config.RequestedToCapacityRatio {
+			if args.ScoringStrategy.RequestedToCapacityRatio == nil {
+				allErrs = append(allErrs, field.Required(strategyPath.Child("requestedToCapacityRatio"), "must be specified when type is RequestedToCapacityRatio"))
+			} else {
+				allErrs = append(allErrs, validateFunctionShape(args.ScoringStrategy.RequestedToCapacityRatio.Shape, strategyPath.Child("shape"))...)
+			}
 		}
 	}
 
diff --git a/pkg/scheduler/apis/config/validation/validation_pluginargs_test.go b/pkg/scheduler/apis/config/validation/validation_pluginargs_test.go
index e452575fa8e31..1022eeb6ace8f 100644
--- a/pkg/scheduler/apis/config/validation/validation_pluginargs_test.go
+++ b/pkg/scheduler/apis/config/validation/validation_pluginargs_test.go
@@ -754,6 +754,15 @@ func TestValidateFitArgs(t *testing.T) {
 			},
 			expect: `Unsupported value: "Invalid"`,
 		},
+		{
+			name: "ScoringStrategy: requestedToCapacityRatio field is missing",
+			args: config.NodeResourcesFitArgs{
+				ScoringStrategy: &config.ScoringStrategy{
+					Type: config.RequestedToCapacityRatio,
+				},
+			},
+			expect: "must be specified when type is RequestedToCapacityRatio",
+		},
 	}
 
 	for _, test := range argsTest {