The present invention discloses an omnidirectional movement control system, having a move signal generator for generating a plurality of movement signals based on a plurality of first position signals and a plurality of second position signals, and an omnidirectional movement controller for generating a plurality of pulse width modulation signals and a plurality of motor direction change signals based on the movement signals and a plurality of motor encoding disc signals, and a driving circuit for driving motors to rotate a plurality of omnidirectional wheels based on the pulse width modulation signals and the motor direction change signals, such that a mobile platform can be moved in any direction and rotated in different directions, so as to provide excellent mobility and flexibility to the mobile platform.