The Lisan land slide area consists of many sliding blocks within an area of approximately 230 ha. Because of a reservoir and island crossing highways located in this area, the government initiated tremendous efforts on stabilizing the area since a slide occurred in April, 1990. An automatic system was set up for monitoring the ground movement and ground water table variation in order to evaluate the effect of engineering remedial works. The system has been working for some time under a stable condition. This paper describes the system, including its planning, operation, and utilization of the data obtained from this system.