A micro robot system movable on three dimensional space includes a micro robot unit (100) including, at magnet module (110) having a certain magnetization direction and configured to rotate and proceed along a wall by a processional rotating magnetic field and an electromagnetic field generation unit (200) configured to set an alignment direction of the micro robot unit to have a certain angle with respect to the magnetization direction and configured to generate a magnetic field in the alignment direction to derive the micro robot unit.
