The Implementation of patient Information System (Khlong Mae Lai clinic) aimed 1) to manage patient and treatment information including contraceptive injection information and 2) to summarize the statistical treatment report. The tools used to develop this system was Microsoft Visual Basic 2010 together with Microsoft SQL Server 2012. The Implementation of the system facilitated the management and retrieval of patient and treatment information. In addition, it was able to generate the treatment report monthly and annually in order to inform Kamphaeng Phet Provincial Health Office. The report consisted of six diseases which were common cold, tonsillitis, Pyelonephritis, Polymyositis, neuropathy and contraceptive injection. The system can also be further developed to report the tendency to control disease and health hazard in a specific area. For example, the spread of respiratory diseases and gastrointestinal tract disease will be reported at once.