diff --git a/MdePkg/Include/IndustryStandard/PeImage.h b/MdePkg/Include/IndustryStandard/PeImage.h
index 5ab1e7a9b8..b173444da3 100644
--- a/MdePkg/Include/IndustryStandard/PeImage.h
+++ b/MdePkg/Include/IndustryStandard/PeImage.h
@@ -598,7 +598,7 @@ typedef struct {
 
 
 ///
-/// Debug Direcotry Format
+/// Debug Directory Format
 ///
 typedef struct {
   UINT32  Characteristics;
@@ -643,6 +643,59 @@ typedef struct {
   //
 } EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY;
 
+///
+/// Resource format.
+///
+typedef struct {
+  UINT32  Characteristics;
+  UINT32  TimeDateStamp;
+  UINT16  MajorVersion;
+  UINT16  MinorVersion;
+  UINT16  NumberOfNamedEntries;
+  UINT16  NumberOfIdEntries;
+  //
+  // Array of EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY entries goes here.
+  //
+} EFI_IMAGE_RESOURCE_DIRECTORY;
+
+///
+/// Resource directory entry format.
+///
+typedef struct {
+  union {
+    struct {
+      UINT32  NameOffset:31;
+      UINT32  NameIsString:1;
+    } s;
+    UINT32  Id;
+  } u1;
+  union {
+    UINT32  OffsetToData;
+    struct {
+      UINT32  OffsetToDirectory:31;
+      UINT32  DataIsDirectory:1;
+    } s;
+  } u2;
+} EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY;
+
+///
+/// Resource directory entry for string.
+///
+typedef struct {
+  UINT16  Length;
+  CHAR16  String[1];
+} EFI_IMAGE_RESOURCE_DIRECTORY_STRING;
+
+///
+/// Resource directory entry for data array.
+///
+typedef struct {
+  UINT32  OffsetToData;
+  UINT32  Size;
+  UINT32  CodePage;
+  UINT32  Reserved;
+} EFI_IMAGE_RESOURCE_DATA_ENTRY;
+
 ///
 /// Header format for TE images, defined in PI Specification, 1.0
 ///