diff --git a/paddle/framework/attribute.cc b/paddle/framework/attribute.cc
index 27132eaa0b3b0666fc042faf052dac2e169ba9e7..534c0d8d686cf30688078005975dec1bde89bf60 100644
--- a/paddle/framework/attribute.cc
+++ b/paddle/framework/attribute.cc
@@ -47,40 +47,44 @@ template <>
 AttrType AttrTypeID<std::vector<std::pair<int, int>>>() {
   return INT_PAIRS;
 }
+template <>
+AttrType AttrTypeID<BlockDesc>() {
+  return BLOCK;
+}
 
 Attribute GetAttrValue(const OpDesc::Attr& attr_desc) {
   switch (attr_desc.type()) {
-    case paddle::framework::AttrType::INT: {
+    case framework::AttrType::INT: {
       return attr_desc.i();
     }
-    case paddle::framework::AttrType::FLOAT: {
+    case framework::AttrType::FLOAT: {
       return attr_desc.f();
     }
-    case paddle::framework::AttrType::STRING: {
+    case framework::AttrType::STRING: {
       return attr_desc.s();
     }
-    case paddle::framework::AttrType::INTS: {
+    case framework::AttrType::INTS: {
       std::vector<int> val(attr_desc.ints_size());
       for (int i = 0; i < attr_desc.ints_size(); ++i) {
         val[i] = attr_desc.ints(i);
       }
       return val;
     }
-    case paddle::framework::AttrType::FLOATS: {
+    case framework::AttrType::FLOATS: {
       std::vector<float> val(attr_desc.floats_size());
       for (int i = 0; i < attr_desc.floats_size(); ++i) {
         val[i] = attr_desc.floats(i);
       }
       return val;
     }
-    case paddle::framework::AttrType::STRINGS: {
+    case framework::AttrType::STRINGS: {
       std::vector<std::string> val(attr_desc.strings_size());
       for (int i = 0; i < attr_desc.strings_size(); ++i) {
         val[i] = attr_desc.strings(i);
       }
       return val;
     }
-    case paddle::framework::AttrType::INT_PAIRS: {
+    case framework::AttrType::INT_PAIRS: {
       std::vector<std::pair<int, int>> val(attr_desc.int_pairs_size());
       for (int i = 0; i < attr_desc.int_pairs_size(); ++i) {
         val[i].first = attr_desc.int_pairs(i).first();
@@ -88,6 +92,9 @@ Attribute GetAttrValue(const OpDesc::Attr& attr_desc) {
       }
       return val;
     }
+    case framework::AttrType::BLOCK: {
+      return g_program_desc.blocks(attr_desc.block_idx());
+    }
   }
   PADDLE_ENFORCE(false, "Unknown OpDesc::AttrDesc::type !");
   return boost::blank();
diff --git a/paddle/framework/attribute.h b/paddle/framework/attribute.h
index 2b788a76cafe198abb9aed8ba842e37cc6ff73a6..f18123bac7c3ca21df05cabb327380b6f27cde0b 100644
--- a/paddle/framework/attribute.h
+++ b/paddle/framework/attribute.h
@@ -29,11 +29,13 @@ namespace framework {
 
 typedef boost::variant<boost::blank, int, float, std::string, std::vector<int>,
                        std::vector<float>, std::vector<std::string>,
-                       std::vector<std::pair<int, int>>>
+                       std::vector<std::pair<int, int>>, BlockDesc>
     Attribute;
 
 typedef std::unordered_map<std::string, Attribute> AttributeMap;
 
+static ProgramDesc g_program_desc;
+
 template <typename T>
 AttrType AttrTypeID();
 
diff --git a/paddle/framework/framework.proto b/paddle/framework/framework.proto
index dcbc9ec4076dbba18b1c38606bbaf30ebcd86b51..89a49f69062486ace67154f52450e7449a948851 100644
--- a/paddle/framework/framework.proto
+++ b/paddle/framework/framework.proto
@@ -45,7 +45,7 @@ message OpDesc {
     repeated float floats = 7;
     repeated string strings = 8;
     repeated IntPair int_pairs = 9;
-    optional int32 block = 10;
+    optional int32 block_idx = 10;
   };
 
   message Var {