diff --git a/onnxruntime/core/providers/js/operators/concat.cc b/onnxruntime/core/providers/js/operators/concat.cc
index 3a6a7e1cafd7a..17c6b0466c3a5 100644
--- a/onnxruntime/core/providers/js/operators/concat.cc
+++ b/onnxruntime/core/providers/js/operators/concat.cc
@@ -12,7 +12,8 @@ ONNX_OPERATOR_VERSIONED_KERNEL_EX(
     1, 3,
     kJsExecutionProvider,
     (*KernelDefBuilder::Create())
-        .TypeConstraint("T", {DataTypeImpl::GetTensorType<float>(),
+        .TypeConstraint("T", {DataTypeImpl::GetTensorType<MLFloat16>(),
+                              DataTypeImpl::GetTensorType<float>(),
                               DataTypeImpl::GetTensorType<int32_t>()}),
     Concat);
 
@@ -22,7 +23,8 @@ ONNX_OPERATOR_VERSIONED_KERNEL_EX(
     4, 10,
     kJsExecutionProvider,
     (*KernelDefBuilder::Create())
-        .TypeConstraint("T", {DataTypeImpl::GetTensorType<float>(),
+        .TypeConstraint("T", {DataTypeImpl::GetTensorType<MLFloat16>(),
+                              DataTypeImpl::GetTensorType<float>(),
                               DataTypeImpl::GetTensorType<int32_t>()}),
     Concat);
 
@@ -32,7 +34,8 @@ ONNX_OPERATOR_VERSIONED_KERNEL_EX(
     11, 12,
     kJsExecutionProvider,
     (*KernelDefBuilder::Create())
-        .TypeConstraint("T", {DataTypeImpl::GetTensorType<float>(),
+        .TypeConstraint("T", {DataTypeImpl::GetTensorType<MLFloat16>(),
+                              DataTypeImpl::GetTensorType<float>(),
                               DataTypeImpl::GetTensorType<int32_t>()}),
     Concat);
 
@@ -42,7 +45,8 @@ ONNX_OPERATOR_KERNEL_EX(
     13,
     kJsExecutionProvider,
     (*KernelDefBuilder::Create())
-        .TypeConstraint("T", {DataTypeImpl::GetTensorType<float>(),
+        .TypeConstraint("T", {DataTypeImpl::GetTensorType<MLFloat16>(),
+                              DataTypeImpl::GetTensorType<float>(),
                               DataTypeImpl::GetTensorType<int32_t>()}),
     Concat);