This research aims to develop a system for managing economic information on crops of Dan Makham Tia, District Kanchanaburi. In which agriculture is the main occupation of the local area. Therefore, the Dan Makham Tia District Agricultural Office realizes the importance and therefore has the idea to develop a system for systematic economic crop information management. As most information is now stored in a document format. The problems found are lost documents, torn, dirty, delayed publishing, etc. The office wants to develop a system to store economic data of the Dan Makham Tia district in the form of an application. By bringing modern technology into the deal to facilitate the convenience of users and related agencies. By this research, design and development of economic information management system. Which the system has working in 2 parts as follows: 1) Web application, Administrators can manage economic crop data by adding, deleting, editing various information. Users can view detailed information and post posts and leave comments. 2) Mobile application, there is work able to locate the location of each type of economic crops in each village. Where users can see the coordinates of plants. Administrators can add the coordinates of the plant through a mobile device. And the system developer has designed two aspects of the performance assessment:                   1) satisfaction on the web application and 2) the satisfaction of using the system through the mobile application. Computer experts of 3 people and officials of the Agricultural Office of Dan Makham Tia district of 10 people. From the evaluation results, it was found that in the first area, web application usability. The users have the average satisfaction at a good level, the average is 4.11. And the results of the evaluation of the second side of the mobile application. The users have a good average of satisfaction. The average was 4.55, respectively.