In order to quicken the response speed and improve the disturbance rejection ability of the photoelectric stabilized platform, a Model-based Linear Active Disturbance Rejection Controller (MLADRC) was proposed.The approximate model of the photoelectric stabilized platform was obtained by using the method of system identification.The acquired model information was added to the design of Extended State Observer (ESO), and then MLADRC was designed.A comparison was conducted with LADRC , designed not using the model information.The simulation results show that MLADRC has better control performance and can effectively improve the response speed and disturbance rejection ability of the photoelectric stabilized platform.