The embodiment of the invention discloses a robot chassis and a robot. A specific embodiment of the robot chassis comprises a framework, wherein two driving wheel modules and two driven wheel modules are arranged at the bottom of the framework; four wheels of the two driving wheel modules and the two driven wheel modules are respectively positioned at a corresponding vertex of a diamond; the two driving wheel module are symmetrically arranged at the left and right parts of the bottom of the framework; and the two driven wheel module which use swivel casters are symmetrically arranged at the front and rear parts of the bottom of the framework. This embodiment ensures that the contact point between the wheels of the robot chassis and the ground has a larger projection area so that the robot chassis has higher static / dynamic stability, and at the same time, the entire robot chassis has a smaller turning radius and is easier to control.