Because of the rises of daily medical care needs, medical services expend rapidly. Also, the development of new equipments and skills cause the raise of medical expenses. For lower the medical costs, increase the quality of medical services, and obtain the competitive advantages, “electroniclization” will be the major trend in the medical service industry. Because of that, electronic medical record will play the core rule in the industry. This research focuses on establishing the electronic medical record into the mobile devices; through the new innovative combination of system development and on going electronic medical record, the patients can enjoy the decision-making power of their own medical records, which provides them the up-to-date information. This system will be developed by Visual C# program to produce the related application on the mobile devices; users can simply use their ID number and passwords to log into this application. This system contains 5 related electronic medical devices as the sub-functions, which produces the user most up-to-dated on-going electronic medical records.