diff --git a/HandyJSON.xcodeproj/project.pbxproj b/HandyJSON.xcodeproj/project.pbxproj
index 7913ee0..507a225 100644
--- a/HandyJSON.xcodeproj/project.pbxproj
+++ b/HandyJSON.xcodeproj/project.pbxproj
@@ -1323,7 +1323,7 @@
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = "$(SRCROOT)/Source/Info-iOS.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSON;
 				PRODUCT_NAME = "$(PROJECT_NAME)";
@@ -1347,7 +1347,7 @@
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = "$(SRCROOT)/Source/Info-iOS.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSON;
 				PRODUCT_NAME = "$(PROJECT_NAME)";
@@ -1366,7 +1366,7 @@
 				DEVELOPMENT_TEAM = QBMN2BBW3K;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = HandyJSONDemo/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSONDemo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -1386,7 +1386,7 @@
 				DEVELOPMENT_TEAM = QBMN2BBW3K;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = HandyJSONDemo/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSONDemo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -1402,7 +1402,7 @@
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "Tests/HandyJSONTests/Info-iOS.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSONTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -1417,7 +1417,7 @@
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "Tests/HandyJSONTests/Info-iOS.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.aliyun.app.HandyJSONTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
diff --git a/Source/Configuration.swift b/Source/Configuration.swift
index f7c4f2e..48a0ed6 100644
--- a/Source/Configuration.swift
+++ b/Source/Configuration.swift
@@ -25,6 +25,8 @@ public struct DeserializeOptions: OptionSet {
     public let rawValue: Int
 
     public static let caseInsensitive = DeserializeOptions(rawValue: 1 << 0)
+    
+    public static let convertFromSnakeCase = DeserializeOptions(rawValue: 1 << 1)
 
     public static let defaultOptions: DeserializeOptions = []
 
diff --git a/Source/ExtendCustomModelType.swift b/Source/ExtendCustomModelType.swift
index 781b007..654f741 100644
--- a/Source/ExtendCustomModelType.swift
+++ b/Source/ExtendCustomModelType.swift
@@ -30,6 +30,16 @@ fileprivate func convertKeyIfNeeded(dict: [String: Any]) -> [String: Any] {
             newDict[key.lowercased()] = value
         })
         return newDict
+    } else if HandyJSONConfiguration.deserializeOptions.contains(.convertFromSnakeCase) {
+           var newDict = [String: Any]()
+           dict.forEach({ (kvPair) in
+               let (key, value) = kvPair
+               let result = key.split(separator: "_").reduce("") {(acc, name) in
+                   "\(acc)\(acc.count > 0 ? String(name.capitalized) : String(name))"
+               }
+               newDict[result] = value
+           })
+           return newDict
     }
     return dict
 }
diff --git a/Source/Metadata.swift b/Source/Metadata.swift
index 35d78b3..49fbd32 100755
--- a/Source/Metadata.swift
+++ b/Source/Metadata.swift
@@ -290,11 +290,14 @@ extension Metadata {
                 var name: String?
                 var type: Any.Type?
             }
-            for i in 0..<self.numberOfFields {
+            for i in 0..<self.numberOfFields where fieldRecords[i].mangledTypeName != nil{
                 let name = fieldRecords[i].fieldName
-                if let cMangledTypeName = fieldRecords[i].mangledTypeName,
-                    let fieldType = _getTypeByMangledNameInContext(cMangledTypeName, getMangledTypeNameSize(cMangledTypeName), genericContext: self.contextDescriptorPointer, genericArguments: self.genericArgumentVector) {
-
+                let cMangledTypeName = fieldRecords[i].mangledTypeName!
+                
+                let functionMap: [String: () -> Any.Type?] = [
+                    "function": { _getTypeByMangledNameInContext(cMangledTypeName, getMangledTypeNameSize(cMangledTypeName), genericContext: self.contextDescriptorPointer, genericArguments: self.genericArgumentVector) }
+                ]
+                if let function = functionMap["function"],let fieldType  = function() {
                     result.append(Property.Description(key: name, type: fieldType, offset: fieldOffsets[i]))
                 }
             }
diff --git a/Tests/HandyJSONTests/BasicTypesInStructTestsFromJSON.swift b/Tests/HandyJSONTests/BasicTypesInStructTestsFromJSON.swift
index f13eee6..9376375 100644
--- a/Tests/HandyJSONTests/BasicTypesInStructTestsFromJSON.swift
+++ b/Tests/HandyJSONTests/BasicTypesInStructTestsFromJSON.swift
@@ -112,6 +112,22 @@ class BasicTypesInStructTestsFromJSON: XCTestCase {
         XCTAssertEqual(mappedObject?.anyObjectOptional as? Int, value2)
         XCTAssertEqual(mappedObject?.anyObjectImplicitlyUnwrapped as? Double, value3)
     }
+    
+    func testMappingAnyObjectFromJSONByConvertFromSnakeCase() {
+        HandyJSONConfiguration.deserializeOptions = .convertFromSnakeCase
+        defer {
+            HandyJSONConfiguration.deserializeOptions = .defaultOptions
+        }
+        let value1 = "STRING"
+        let value2: Int = 1234
+        let value3: Double = 11.11
+        let JSONString = "{\"any_object\" : \"\(value1)\", \"any_object_optional\" : \(value2), \"any_object_implicitly_unwrapped\" : \(value3)}"
+        let mappedObject = BasicTypesInStruct.deserialize(from: JSONString)
+        XCTAssertNotNil(mappedObject)
+        XCTAssertEqual(mappedObject?.anyObject as? String, value1)
+        XCTAssertEqual(mappedObject?.anyObjectOptional as? Int, value2)
+        XCTAssertEqual(mappedObject?.anyObjectImplicitlyUnwrapped as? Double, value3)
+    }
 
     func testMappingStringFromNSStringJSON(){
         let value: String = "STRINGNGNGG"