The utility model relates to a four-DOF test bench. To-be-tested equipment placed on the test bench is driven by an elevating platform to move up and down; a linear bearing is provided with support bases fixed to a table top of the elevating platform, plain shafts between each two support bases, and slide blocks sleeving the plain shafts, and a workbench connected to the slide blocks can move along the plain shafts and drive the equipment to move forward and backward; an angle rotating platform can rotate around a rotary shaft connected to the workbench and drive the equipment to perform an angle motion; and a rotation tool is provided with two rolling supports on the angle rotating platform to support the to-be-tested equipment, and then the equipment can perform a rolling motion. The four-DOF test bench can achieve an up-down, forward-backward, angle and rolling four-DOF motion of radio receiving equipment, and satisfies function requirements of accurate measurement, parameter calibration, state fixation and safety protection.