Abstract:In order to improve feeding automation and industrialization, auto-feeding system suited for aquaculture feeding management of deep water net cage is designed and developed. Based on configuration software (Monitor and Control Generated System) which supplied for redevelopment. The system is used PLC as control core and built communication between personal computer and PLC. The working principle and design framework of auto feeding system is introduced, working process and program design of PLC controlling system are described, system configuring process based on MCGS configuration software is explained. The experiment results show that system has the advantage of stable performance, high reliability, friendly man-machine interface, convenient operation. Functions of feeding control animation display system condition monitoring permission management history data output, printing were realized.