Abstract: In order to solve the problem of the force field distribution of the rectangular permanent magnet,the method of theoretical analysis and numerical analysis is used.The equation formulation for the force and the torque field of the interactive dipole triads is obtained.The results show that the formulation of the magnetic force and torque distribution for the rectangular permanent magnet in this paper can give access to the precise three-dimensional magnetic force and torque field distribution surrounding double permanent magnets which arranged in different manners and in different position.The magnetic force field characteristic discussed in the simulation of magnetic field can provide a theoretical base for engineering application and the magnetic track field control of permanent magnets.