Abstract: Sheep grazing is an important form of animal husbandry in the western region of China, which mainly adopts natural grassland grazing as the main mode and supplemented by feeding. Sheep grazing behavior is affected by plant composition, grassland quality, grass height and grazing pressure. Reasonable and scientific sheep grazing management strategy plays an important role in maintaining the balance of the grassland ecosystem and the sustainable development of mutton sheep breeding industry. This article summarized the grazing behavior characteristics of grazing sheep under different grazing pressures, environmental, terrain conditions and different months. This paper summarized the application of intelligent monitoring technologies such as tri-axial accelerometer, BD/GPS satellite, piezoelectric sensor and audio/video monitoring, and prospected the development direction of sheep grazing behavior monitoring technology.