The land-based vehicle electromagnetic launcher for unmanned aerial vehicle is a new kind of take-off device. In order to realize the high maneuverability, a bilateral moving-coil permanent magnet direct current linear motor with the stator magnet track section splicing structure scheme was presented. In order to evaluate the influence of stator magnet track splice on the performance of the motor, the permanent magnet linear 〖JP2〗motor model was established. The influence of the up and down dislocation, the left and right dislocation and the tilting dislocation of the segmented splice were analyzed by using the finite element analysis software. Based on the analysis, the allowable magnet track splicing offset range was given.