A tube pump comprising: a housing unit formed in an arc shape about an axis and having an inner circumferential surface on which a flexible tube is arranged; a first contact unit configured to rotate about the axis while being in contact with the tube housed in the housing unit; a second contact unit configured to rotate about the axis while being in contact with the tube; a drive shaft arranged on the axis and coupled to the first contact unit; a drive cylinder arranged on the axis and coupled to the second contact unit; a first drive unit configured to rotate the drive shaft in a predetermined direction about the axis and having a first drive member configured to rotate about the axis; and a second drive unit configured to rotate the drive cylinder in the predetermined direction about the axis and having a second drive member configured to rotate about the axis, wherein the drive shaft is arranged so as to penetrate through the second drive unit along the axis, and wherein the drive cylinder is arranged on an outer circumference side of the drive shaft and rotatably about the axis independently of the drive shaft, characterized in that the first drive unit has a first pulse motor configured to rotate the first drive member in the predetermined direction, the second drive unit has a second pulse motor configured to rotate the second drive member in the predetermined direction, the first drive member is coupled to the drive shaft so as to integrally rotate with the drive shaft, and in that the second drive member is coupled to the drive cylinder so as to integrally rotate with the drive cylinder. a housing unit formed in an arc shape about an axis and having an inner circumferential surface on which a flexible tube is arranged; a first contact unit configured to rotate about the axis while being in contact with the tube housed in the housing unit; a second contact unit configured to rotate about the axis while being in contact with the tube; a drive shaft arranged on the axis and coupled to the first contact unit; a drive cylinder arranged on the axis and coupled to the second contact unit; a first drive unit configured to rotate the drive shaft in a predetermined direction about the axis and having a first drive member configured to rotate about the axis; and a second drive unit configured to rotate the drive cylinder in the predetermined direction about the axis and having a second drive member configured to rotate about the axis, wherein the drive shaft is arranged so as to penetrate through the second drive unit along the axis, and wherein the drive cylinder is arranged on an outer circumference side of the drive shaft and rotatably about the axis independently of the drive shaft, characterized in that the first drive unit has a first pulse motor configured to rotate the first drive member in the predetermined direction, the second drive unit has a second pulse motor configured to rotate the second drive member in the predetermined direction, the first drive member is coupled to the drive shaft so as to integrally rotate with the drive shaft, and in that the second drive member is coupled to the drive cylinder so as to integrally rotate with the drive cylinder.