A UAV test bench comprising: a support component; a universal rotating component, which is sliding on the support component along the Z direction, and one end of the universal rotating component can rotate in a universal manner relative to the other end of the universal rotating component; a fixing component, which is connected to one end of the universal rotating component, and the fixing component is configured to fix the UAV; a return component, one end of which is connected to the support component, and the other end of which is connected to the other end of the universal rotating component, wherein, the return component is configured to drive the universal rotating component and the fixing component to reset at original positions, the support component comprises a support frame, a first support, a second support plate and a plurality of support columns, the first support is fixedly connected to one end of the support frame, and the second support plate is connected with the first support through the support columns, the first support has a first through hole, the universal rotating component is sliding on the first through hole, one end of the return component is connected to the first support, and the second support plate is configured to support the fixing component at the original positions, where the fixing component contacts the second support plate, and the universal rotating component comprises a universal joint and a fixed shaft, the universal joint comprises a first end and a second end capable of universal rotation relative to the first end, the fixing component is connected to the second end of the universal joint, one end of the fixed shaft is connected to the first end of the universal joint, and the other end of the return component is connected to the fixed shaft, characterized in that the first support is in the form of a support plate, the universal rotating component further comprises a limit sleeve, and the limit sleeve is sleeved outside the universal joint and fixedly connected to the first end. a support component; a universal rotating component, which is sliding on the support component along the Z direction, and one end of the universal rotating component can rotate in a universal manner relative to the other end of the universal rotating component; a fixing component, which is connected to one end of the universal rotating component, and the fixing component is configured to fix the UAV; a return component, one end of which is connected to the support component, and the other end of which is connected to the other end of the universal rotating component, wherein, the return component is configured to drive the universal rotating component and the fixing component to reset at original positions, the support component comprises a support frame, a first support, a second support plate and a plurality of support columns, the first support is fixedly connected to one end of the support frame, and the second support plate is connected with the first support through the support columns, the first support has a first through hole, the universal rotating component is sliding on the first through hole, one end of the return component is connected to the first support, and the second support plate is configured to support the fixing component at the original positions, where the fixing component contacts the second support plate, and the universal rotating component comprises a universal joint and a fixed shaft, the universal joint comprises a first end and a second end capable of universal rotation relative to the first end, the fixing component is connected to the second end of the universal joint, one end of the fixed shaft is connected to the first end of the universal joint, and the other end of the return component is connected to the fixed shaft, characterized in that the first support is in the form of a support plate, the universal rotating component further comprises a limit sleeve, and the limit sleeve is sleeved outside the universal joint and fixedly connected to the first end.