In order to accelerate fishery modernization, promote aquaculture technology updating and improve production automation level, a new type of aquaculture monitoring and control system was designed based on ARM9 processor and Android operating system. STM32 microprocessor was used to collect data on water temperature, pH, dissolved oxygen (DO) concentration and water level in real time, the data were then synthesized using ZigBee technology and transferred to Android terminal through wireless network mode, realizing the automatic adjusting and control of water quality parameters. When DO concentration and water level exceed a predetermined threshold, the system would automatically regulate the aerator and the opening and closing of the pump for water supply and drainage; when pH value and water temperature exceed the threshold value, the system would warn for artificial intervention through its terminal and on-site alerting, thus to reduce the impact of environment on aquaculture output. The system has been tested in an aquaculture farm for its field application, and the results show that the errors of dissolved oxygen ±0.4mg/L and water level ±2cm remain in reasonable range, and the system could satisfy the remote monitoring requirement of aquaculture.