The present invention discloses an unmanned transporting robot and the chassis thereof, the chassis includes a floor, a drive unit and a follow unit; the follow unit is used to bear the loads of the chassis and the payload, and includes a plurality of follow components which are arranged on the floor to enable the floor to move smoothly (i. e. without the occurrence of tilting or vibration); the drive unit includes a first drive component and a second drive component which are located symmetrically on both ends of the floor. The present invention also discloses an unmanned transporting robot including the above-described chassis. The chassis of the unmanned transporting robot according to the present invention has the advantages of a compress structure, a small size and a high loading-bearing capacity.