An application of integration of supervisory control and database has been developed in the study. A simulation for monitoring and controlling devices in rice mill had been undertaken. The control program was implemented by using Visual BASIC. NET. With the Socket and ADO. NET techniques, user can control devices in the rice mill and record the operation conditions in the database located at the remote server via internet. According to testing results, the system was capable of controlling and recording the operation conditions of devices in the rice mill correctly. The averaged elapsed time for transferring data along internet was about 1 sec.