diff --git a/src/ImeWlConverterCore/ConstantString.cs b/src/ImeWlConverterCore/ConstantString.cs
index 16f4448a..828dd7df 100644
--- a/src/ImeWlConverterCore/ConstantString.cs
+++ b/src/ImeWlConverterCore/ConstantString.cs
@@ -56,6 +56,7 @@ public class ConstantString
         public const string IFLY_IME = "讯飞输入法";
         public const string JIDIAN = "极点五笔";
         public const string JIDIAN_ZHENGMA = "极点郑码";
+        public const string JIDIAN_MBDICT = "极点五笔.mb文件";
         public const string XIAOYA_WUBI = "小鸭五笔";
         public const string MS_PINYIN = "微软拼音";
         public const string WIN10_MS_PINYIN = "Win10微软拼音（自定义短语）";
@@ -101,6 +102,7 @@ public class ConstantString
         public const string SINA_PINYIN_C = "xlpy";
         public const string SELF_DEFINING_C = "self";
         public const string JIDIAN_C = "jd";
+        public const string JIDIAN_MBDICT_C = "jdmb";
         public const string IFLY_IME_C = "ifly";
         public const string MS_PINYIN_C = "mspy";
         public const string WIN10_MS_PINYIN_C = "win10mspy";
diff --git a/src/ImeWlConverterCore/IME/JidianMBDict.cs b/src/ImeWlConverterCore/IME/JidianMBDict.cs
new file mode 100644
index 00000000..cb8b3604
--- /dev/null
+++ b/src/ImeWlConverterCore/IME/JidianMBDict.cs
@@ -0,0 +1,169 @@
+/*
+ *   Copyright © 2009-2020 studyzy(深蓝,曾毅)
+ *   Copyright © 2022 yfdyh000
+
+ *   This program "IME WL Converter(深蓝词库转换)" is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Text;
+using Studyzy.IMEWLConverter.Entities;
+using Studyzy.IMEWLConverter.Filters;
+using Studyzy.IMEWLConverter.Helpers;
+
+namespace Studyzy.IMEWLConverter.IME
+{
+    /// <summary>
+    /// 极点五笔词库，.mb扩展名，文件头 Freeime Dictionary V6.2
+    /// https://github.com/studyzy/imewlconverter/issues/180
+    /// http://www.freewb.org/
+    /// </summary>
+    [ComboBoxShow(ConstantString.JIDIAN_MBDICT, ConstantString.JIDIAN_MBDICT_C, 190)]
+    public class Jidian_MBDict : IWordLibraryImport
+    {
+        private enum DictCodeType
+        {
+            Pinyin = 1,
+            Wubi98 = 2
+        }
+        public event Action<string> ImportLineErrorNotice;
+        public Jidian_MBDict()
+        {
+            this.CodeType = CodeType.UserDefinePhrase;
+            this.PinyinType = PinyinType.FullPinyin;
+        }
+        public PinyinType PinyinType
+        {
+            get;set;
+        }
+        public Encoding Encoding
+        {
+            get { return Encoding.Unicode; }
+        }
+
+        public int CountWord { get; set; }
+        public int CurrentStatus { get; set; }
+
+        public bool IsText => false;
+
+        public CodeType CodeType
+        {
+            get;set;
+        }
+
+        public WordLibraryList Import(string path)
+        {
+            var pyAndWord = new WordLibraryList();
+            var fs = new FileStream(path, FileMode.Open, FileAccess.Read);
+            fs.Position = 0x00;
+            var headerstr = "Freeime Dictionary";
+            var header = Encoding.ASCII.GetString(BinFileHelper.ReadArray(fs, headerstr.Length));
+            Debug.Assert(header.Equals(headerstr));
+
+            DictCodeType curType;
+
+            fs.Position = 0x23;
+            var headerTypeBytes = BinFileHelper.ReadArray(fs, 4);
+            var headerTypeStr = Encoding.Unicode.GetString(headerTypeBytes);
+            if (headerTypeStr.Equals("拼音"))
+                curType = DictCodeType.Pinyin;
+            else if (headerTypeStr.Equals("五笔"))
+                curType = DictCodeType.Wubi98;
+            else
+                throw new NotImplementedException("未知词库，请在反馈中提交文件");
+
+            var phrase_start = 0x1B620; // 'a'词条所在
+            fs.Position = phrase_start;
+            while (true)
+            {
+                var wl = ReadOnePhrase(fs, curType);
+                if (wl != null)
+                {
+                    pyAndWord.Add(wl);
+                }
+
+                if (fs.Length == fs.Position) //文件结束
+                {
+                    fs.Close();
+                    break;
+                }
+            }
+            return pyAndWord;
+        }
+        
+        private WordLibrary ReadOnePhrase(FileStream fs, DictCodeType type)
+        {
+            WordLibrary wl = new WordLibrary();
+            var codeBytesLen = fs.ReadByte();
+            var wordBytesLen = fs.ReadByte();
+            var split  = fs.ReadByte();
+            // 0x64对应正常词组（包含中英混拼，如"阿Q"）。
+            Debug.Assert(split.Equals(0x64) || split.Equals(0x32)
+                || split.Equals(0x10) || split.Equals(0x66)
+                || split.Equals(0x67)); // 0x67: "$X[计算器]calc"
+            var codeBytes = BinFileHelper.ReadArray(fs, codeBytesLen);
+            var codeStr = Encoding.ASCII.GetString(codeBytes);
+
+            var wordBytes = BinFileHelper.ReadArray(fs, wordBytesLen);
+            var word = Encoding.Unicode.GetString(wordBytes);
+
+            if (split.Equals(0x32)) // 如“醃(腌)”，后者是相应简化字？
+            {
+                word = word.Substring(0,1); // 暂定只取首字
+            }
+            Debug.Assert(word.IndexOf("(") < 0);
+            wl.Word = word;
+            try
+            {
+                if (type == DictCodeType.Pinyin)
+                {
+                    wl.CodeType = CodeType.Pinyin;
+                    wl.SetPinyinString(codeStr);
+                }
+                else if (type == DictCodeType.Wubi98)
+                { 
+                    wl.CodeType = CodeType.Wubi98;
+                    wl.SetCode(CodeType.Wubi98, codeStr);
+                }
+            }
+            catch
+            {
+                wl.CodeType = CodeType.NoCode;
+                ImportLineErrorNotice?.Invoke(wl.Word+" 的编码缺失");
+            }
+            return wl;
+        }
+
+        public WordLibraryList ImportLine(string str)
+        {
+            throw new NotImplementedException("二进制文件不支持单个词汇的转换");
+        }
+        public event Action<string> ExportErrorNotice;
+      
+        public IList<string> Export(WordLibraryList wlList)
+        {
+            throw new NotImplementedException("暂不支持");
+        }
+
+        public string ExportLine(WordLibrary wl)
+        {
+            throw new NotImplementedException("二进制文件不支持单个词汇的转换");
+        }
+    }
+}
+ 
\ No newline at end of file