In order to improve the ability for capturing and tracking the space flying object and to decrease the fluctuation of the real-time guide data with the intersection model switching,an intersection approach for multiple stations based on the least square estimation is put forward in the measurement network composed of two or more TV theodolites.According to the real-time geometrical relationship between the measured object and the TV theodolites,the proposed method makes use of TV theodolites position and their real-time angle information of the measured object to construct two perpendicular planes for every theodolite,which are intersectant at the measure direction line.The coordinates of the measured object is estimated by the least square principle.During the period of two theodolites taking part in real-time intersection calculation,the nonplanar intersection method is the special case of this method,so this intersection method is very effective.The simulation results show that compared with the nonplanar intersection method,the real-time guide data produced by this method is smooth and unfluctuating,the position error of the two methods is less 0.18 m,and the method can meet the needs for the multi-station TV theodolites intersection.