The fishermen suffered heavy losses because of the followings causes: (1) Seasonal unstable weather, (2) Temperature difference is too large at one day, (3) Because cable theft, resulting in power cuts without any advance warning, (4) The fish died due to lack of enough oxygen. Traditional fish farms often use artificial management methods that are time-consuming, laborious and not economic. With the ever-changing technology, this paper attempts to use programmable controller combined with man-machine interface and VB graphics monitoring to provide a shared technology platform for detection and control of temperature, feed, liquid level, oxygen, water tankers, anti-theft, I/O devices and power supplies. Through the Internet we can construct a complete set of intelligent fisheries management and monitoring system.