In recent years, with the arrival of information era and the rapid development of the medical health system, there has been a trend for hospitals and medical care centers to record the patients’ medical record electronically rather than by means of old-fashioned paper-based method. It has indeed reduced the workload of medical workers and it simplifies the procedure within the medical system. It is worth mentioning that the growth of mobile medical care is beginning to catch up as a consequence of the incredible popularization of mobile networks and the broad use of mobile devices. A significant possibility is that in the coming years, mobile medical care applications will play a large part of the whole electronic medical care system. This project will mainly focus on presenting the process of developing an Android application of doctor’s end in the electronic healthcare system which makes it possible for doctors to retrieve data from their patients and diagnose them as well as setting up appointments using mobile devices. The development for the doctor’s end application will follow the waterfall development methodology. In this report the functions of the doctor’s end application will be introduced, and how these functions are realized will also be displayed in detail. After the implementation, the app will be tested on an Android device emulator and on real Android mobile devices in order to evaluate their performance. In addition, it will be tested by mobile phone specialists in relation to gathering feedback. Finally, a reasonable conclusion will be drawn with regards to this project including ethical issues.