A cell thawing machine is provided. The cell thawing machine according to one embodiment of the present invention comprises: a thawing unit including a heating block, a heater, an insulation block, and a support, the heating block including a first heating block and a second heating block which form a heating space for heating a container in which a predetermined amount of biological material including cells is stored, the heater being installed in the heating block to provide heat to the heating block, the insulation block being coupled to the heating block to surround the heater, and the supporter being disposed in the heating space to support the lower portion of the container; a driving unit for providing a driving force for linearly moving the first heating block and the second heating block in left and right directions; a sensing unit including a sensor for detecting the state of the container disposed in the heating space, and a mounting member on which the sensor is mounted and which moves in forward and backward directions in connection with the operation of the driving unit; and a control unit for controlling the operations of the thawing unit, the driving unit, and the sensing unit.