A micro robot system movable on three dimensional space, the micro robot system comprising: a micro robot unit including a magnet module having a certain magnetization direction and configured to rotate and proceed along a wall by a precessional rotating magnetic field; an electromagnetic field generation unit 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 drive the micro robot unit; and the electromagnetic field generation unit including an uniform magnetic field generation module comprising: an X-axis uniform coil system, a Y-axis uniform coil system, and a Z-axis uniform coil system wherein the X-axis, the Y-axis, and the Z-axis are perpendicular to one another in order to generate a constant magnetic field to align the micro robot unit in the alignment direction and precessionally rotate the micro robot unit with respect to the alignment direction, and a gradient magnetic field generator module comprising an X-axis gradient coil system and R-axis gradient coil system wherein the R-axis is rotated around X-axis in order to generate a magnetic field having a constant acceleration and generate a constant driving force in the alignment direction of the micro robot unit and a direction perpendicular to the alignment direction, characterized by said uniform magnetic field generation module including: a pair of Helmholtz coil units disposed to face opposite to each other and penetrating a certain axis on the three dimensional space; and two pairs of fixed uniform saddle coil units located on a plane perpendicular to the certain axis and fixedly installed to be orthogonal to each other; and said gradient magnetic field generation module including: a pair of Maxwell coil units disposed to face opposite to each other and penetrating an axis same as the certain axis; and a pair of rotational gradient saddle coil units installed on a rotating member and having the axis same as the certain axis as a rotational axis thereof. a micro robot unit including a magnet module having a certain magnetization direction and configured to rotate and proceed along a wall by a precessional rotating magnetic field; an electromagnetic field generation unit 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 drive the micro robot unit; and the electromagnetic field generation unit including an uniform magnetic field generation module comprising: an X-axis uniform coil system, a Y-axis uniform coil system, and a Z-axis uniform coil system wherein the X-axis, the Y-axis, and the Z-axis are perpendicular to one another in order to generate a constant magnetic field to align the micro robot unit in the alignment direction and precessionally rotate the micro robot unit with respect to the alignment direction, and a gradient magnetic field generator module comprising an X-axis gradient coil system and R-axis gradient coil system wherein the R-axis is rotated around X-axis in order to generate a magnetic field having a constant acceleration and generate a constant driving force in the alignment direction of the micro robot unit and a direction perpendicular to the alignment direction, characterized by said uniform magnetic field generation module including: a pair of Helmholtz coil units disposed to face opposite to each other and penetrating a certain axis on the three dimensional space; and two pairs of fixed uniform saddle coil units located on a plane perpendicular to the certain axis and fixedly installed to be orthogonal to each other; a pair of Helmholtz coil units disposed to face opposite to each other and penetrating a certain axis on the three dimensional space; and two pairs of fixed uniform saddle coil units located on a plane perpendicular to the certain axis and fixedly installed to be orthogonal to each other; and said gradient magnetic field generation module including: a pair of Maxwell coil units disposed to face opposite to each other and penetrating an axis same as the certain axis; and a pair of rotational gradient saddle coil units installed on a rotating member and having the axis same as the certain axis as a rotational axis thereof. a pair of Maxwell coil units disposed to face opposite to each other and penetrating an axis same as the certain axis; and a pair of rotational gradient saddle coil units installed on a rotating member and having the axis same as the certain axis as a rotational axis thereof.