diff --git a/onnxruntime/core/providers/webgpu/webgpu_context.cc b/onnxruntime/core/providers/webgpu/webgpu_context.cc
index f2c2b0e99c1c8..0e4004db35b10 100644
--- a/onnxruntime/core/providers/webgpu/webgpu_context.cc
+++ b/onnxruntime/core/providers/webgpu/webgpu_context.cc
@@ -43,7 +43,7 @@ void WebGpuContext::Initialize(const WebGpuBufferCacheConfig& buffer_cache_confi
       // Create wgpu::Adapter
       wgpu::RequestAdapterOptions req_adapter_options = {};
       req_adapter_options.backendType = static_cast<wgpu::BackendType>(backend_type);
-      req_adapter_options.powerPreference = wgpu::PowerPreference::HighPerformance;
+      req_adapter_options.powerPreference = static_cast<wgpu::PowerPreference>(power_preference_);
 
 #if !defined(__wasm__)
       auto enabled_adapter_toggles = GetEnabledAdapterToggles();
@@ -955,7 +955,7 @@ WebGpuContext& WebGpuContextFactory::CreateContext(const WebGpuContextConfig& co
   auto it = contexts_.find(context_id);
   if (it == contexts_.end()) {
     GSL_SUPPRESS(r.11)
-    auto context = std::unique_ptr<WebGpuContext>(new WebGpuContext(instance, device, config.validation_mode, config.preserve_device, config.small_storage_buffer_binding_size_for_testing));
+    auto context = std::unique_ptr<WebGpuContext>(new WebGpuContext(instance, device, config.validation_mode, config.preserve_device, config.small_storage_buffer_binding_size_for_testing, config.power_preference));
     it = contexts_.emplace(context_id, WebGpuContextFactory::WebGpuContextInfo{std::move(context), 0}).first;
   } else if (context_id != 0) {
     ORT_ENFORCE(it->second.context->instance_.Get() == instance &&
diff --git a/onnxruntime/core/providers/webgpu/webgpu_context.h b/onnxruntime/core/providers/webgpu/webgpu_context.h
index e21a0e577311f..f1bebc0d52738 100644
--- a/onnxruntime/core/providers/webgpu/webgpu_context.h
+++ b/onnxruntime/core/providers/webgpu/webgpu_context.h
@@ -41,6 +41,7 @@ struct WebGpuContextConfig {
   ValidationMode validation_mode;
   bool preserve_device;
   bool small_storage_buffer_binding_size_for_testing;
+  int power_preference;
 };
 
 struct WebGpuBufferCacheConfig {
@@ -177,8 +178,8 @@ class WebGpuContext final {
     AtPasses
   };
 
-  WebGpuContext(WGPUInstance instance, WGPUDevice device, webgpu::ValidationMode validation_mode, bool preserve_device, bool small_storage_buffer_binding_size_for_testing = false)
-      : instance_{instance}, device_{device}, validation_mode_{validation_mode}, query_type_{TimestampQueryType::None}, preserve_device_{preserve_device}, small_storage_buffer_binding_size_for_testing_{small_storage_buffer_binding_size_for_testing} {}
+  WebGpuContext(WGPUInstance instance, WGPUDevice device, webgpu::ValidationMode validation_mode, bool preserve_device, bool small_storage_buffer_binding_size_for_testing = false, int power_preference = static_cast<int>(wgpu::PowerPreference::HighPerformance))
+      : instance_{instance}, device_{device}, validation_mode_{validation_mode}, query_type_{TimestampQueryType::None}, preserve_device_{preserve_device}, small_storage_buffer_binding_size_for_testing_{small_storage_buffer_binding_size_for_testing}, power_preference_{power_preference} {}
   ORT_DISALLOW_COPY_ASSIGNMENT_AND_MOVE(WebGpuContext);
 
   void LaunchComputePipeline(const wgpu::ComputePassEncoder& compute_pass_encoder,
@@ -267,6 +268,7 @@ class WebGpuContext final {
   bool is_profiling_ = false;
   bool preserve_device_;
   bool small_storage_buffer_binding_size_for_testing_;
+  int power_preference_;
   GraphCaptureState graph_capture_state_{GraphCaptureState::Default};
 
   // External vector to store captured commands, owned by EP
diff --git a/onnxruntime/core/providers/webgpu/webgpu_provider_factory.cc b/onnxruntime/core/providers/webgpu/webgpu_provider_factory.cc
index 60934bef574fa..efd3cf08364f9 100644
--- a/onnxruntime/core/providers/webgpu/webgpu_provider_factory.cc
+++ b/onnxruntime/core/providers/webgpu/webgpu_provider_factory.cc
@@ -168,6 +168,20 @@ std::shared_ptr<IExecutionProviderFactory> WebGpuProviderFactoryCreator::Create(
   }
   LOGS_DEFAULT(VERBOSE) << "WebGPU EP small storage buffer binding size for testing: " << small_storage_buffer_binding_size_for_testing;
 
+  // power preference
+  int power_preference = static_cast<int>(WGPUPowerPreference_HighPerformance);  // default
+  std::string power_preference_str;
+  if (config_options.TryGetConfigEntry(kPowerPreference, power_preference_str)) {
+    if (power_preference_str == kPowerPreference_HighPerformance) {
+      power_preference = static_cast<int>(WGPUPowerPreference_HighPerformance);
+    } else if (power_preference_str == kPowerPreference_LowPower) {
+      power_preference = static_cast<int>(WGPUPowerPreference_LowPower);
+    } else {
+      ORT_THROW("Invalid power preference: ", power_preference_str);
+    }
+  }
+  LOGS_DEFAULT(VERBOSE) << "WebGPU EP power preference: " << power_preference;
+
   webgpu::WebGpuContextConfig context_config{
       context_id,
       reinterpret_cast<WGPUInstance>(webgpu_instance),
@@ -176,6 +190,7 @@ std::shared_ptr<IExecutionProviderFactory> WebGpuProviderFactoryCreator::Create(
       validation_mode,
       preserve_device,
       small_storage_buffer_binding_size_for_testing,
+      power_preference,
   };
 
   LOGS_DEFAULT(VERBOSE) << "WebGPU EP Device ID: " << context_id;
@@ -184,6 +199,7 @@ std::shared_ptr<IExecutionProviderFactory> WebGpuProviderFactoryCreator::Create(
   LOGS_DEFAULT(VERBOSE) << "WebGPU EP DawnProcTable: " << dawn_proc_table;
   LOGS_DEFAULT(VERBOSE) << "WebGPU EP ValidationMode: " << validation_mode;
   LOGS_DEFAULT(VERBOSE) << "WebGPU EP PreserveDevice: " << preserve_device;
+  LOGS_DEFAULT(VERBOSE) << "WebGPU EP PowerPreference: " << power_preference;
 
   //
   // STEP.3 - prepare parameters for WebGPU context initialization.
diff --git a/onnxruntime/core/providers/webgpu/webgpu_provider_options.h b/onnxruntime/core/providers/webgpu/webgpu_provider_options.h
index 761ff0d85fc98..a2ecd7f21f618 100644
--- a/onnxruntime/core/providers/webgpu/webgpu_provider_options.h
+++ b/onnxruntime/core/providers/webgpu/webgpu_provider_options.h
@@ -15,6 +15,7 @@ constexpr const char* kEnableGraphCapture = "ep.webgpuexecutionprovider.enableGr
 constexpr const char* kDawnProcTable = "ep.webgpuexecutionprovider.dawnProcTable";
 
 constexpr const char* kDawnBackendType = "ep.webgpuexecutionprovider.dawnBackendType";
+constexpr const char* kPowerPreference = "ep.webgpuexecutionprovider.powerPreference";
 
 constexpr const char* kDeviceId = "ep.webgpuexecutionprovider.deviceId";
 constexpr const char* kWebGpuInstance = "ep.webgpuexecutionprovider.webgpuInstance";
@@ -39,6 +40,9 @@ constexpr const char* kSmallStorageBufferBindingSizeForTesting = "ep.webgpuexecu
 constexpr const char* kDawnBackendType_D3D12 = "D3D12";
 constexpr const char* kDawnBackendType_Vulkan = "Vulkan";
 
+constexpr const char* kPowerPreference_HighPerformance = "high-performance";
+constexpr const char* kPowerPreference_LowPower = "low-power";
+
 constexpr const char* kPreferredLayout_NCHW = "NCHW";
 constexpr const char* kPreferredLayout_NHWC = "NHWC";