In order to apply Java to mobile communication device and embedded device, the J2ME is issued by SUN. It is also be used on 3G mobile multiplication service by telecommunication company. The paper introduces the methods and processes of developing short message management system adopt J2ME and Siemens Mobility Toolkit 6688i. The system applies 12 classes to realize message grouping, message list and message editing. By this system, the efficiency of the short message management in the mobile phone is increased.