An implementation technique of Mongolian in the software of Mongolian files management was introduced in the present paper. Mongolian Active X control was realized by using ActiveX technique and design of Windows API function, and Mongolian inputting, editing and displaying were solved. 介绍了蒙古文档案管理软件中蒙古文的处理技术,利用ActiveX技术和WindowsAPI函数设计和实现了蒙古文ActiveX控件,解决了蒙古文的输入、编辑和显示等问题。