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diff --git a/MdePkg/Include/IndustryStandard/SmBus.h b/MdePkg/Include/IndustryStandard/SmBus.h
new file mode 100644
index 0000000000..d2755dd39a
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+++ b/MdePkg/Include/IndustryStandard/SmBus.h
@@ -0,0 +1,94 @@
+/** @file
+  This file declares the SMBus definitions defined in SmBus Specifciation
+  V2.0.
+
+  Copyright (c) 2007, Intel Corporation                                                         
+  All rights reserved. This program and the accompanying materials                          
+  are licensed and made available under the terms and conditions of the BSD License         
+  which accompanies this distribution.  The full text of the license may be found at        
+  http://opensource.org/licenses/bsd-license.php                                            
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+  @par Revision Reference:
+  These definitions are defined in System Management Bus (SmBus) Specification V2.0.
+
+**/
+
+#ifndef _SMBUS_H_
+#define _SMBUS_H_
+
+//
+// Smbus Device Address, Smbus Device Command, Smbus Operations
+//
+typedef struct {
+  UINTN SmbusDeviceAddress : 7;
+} EFI_SMBUS_DEVICE_ADDRESS;
+
+typedef UINTN EFI_SMBUS_DEVICE_COMMAND;
+
+typedef enum _EFI_SMBUS_OPERATION
+{
+  EfiSmbusQuickRead,
+  EfiSmbusQuickWrite,
+  EfiSmbusReceiveByte,
+  EfiSmbusSendByte,
+  EfiSmbusReadByte,
+  EfiSmbusWriteByte,
+  EfiSmbusReadWord,
+  EfiSmbusWriteWord,
+  EfiSmbusReadBlock,
+  EfiSmbusWriteBlock,
+  EfiSmbusProcessCall,
+  EfiSmbusBWBRProcessCall
+} EFI_SMBUS_OPERATION;
+
+#endif
+/** @file
+  This file declares the SMBus definitions defined in SmBus Specifciation
+  V2.0.
+
+  Copyright (c) 2007, Intel Corporation                                                         
+  All rights reserved. This program and the accompanying materials                          
+  are licensed and made available under the terms and conditions of the BSD License         
+  which accompanies this distribution.  The full text of the license may be found at        
+  http://opensource.org/licenses/bsd-license.php                                            
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+  @par Revision Reference:
+  These definitions are defined in System Management Bus (SmBus) Specification V2.0.
+
+**/
+
+#ifndef _SMBUS_H_
+#define _SMBUS_H_
+
+//
+// Smbus Device Address, Smbus Device Command, Smbus Operations
+//
+typedef struct {
+  UINTN SmbusDeviceAddress : 7;
+} EFI_SMBUS_DEVICE_ADDRESS;
+
+typedef UINTN EFI_SMBUS_DEVICE_COMMAND;
+
+typedef enum _EFI_SMBUS_OPERATION
+{
+  EfiSmbusQuickRead,
+  EfiSmbusQuickWrite,
+  EfiSmbusReceiveByte,
+  EfiSmbusSendByte,
+  EfiSmbusReadByte,
+  EfiSmbusWriteByte,
+  EfiSmbusReadWord,
+  EfiSmbusWriteWord,
+  EfiSmbusReadBlock,
+  EfiSmbusWriteBlock,
+  EfiSmbusProcessCall,
+  EfiSmbusBWBRProcessCall
+} EFI_SMBUS_OPERATION;
+
+#endif