The invention discloses a 360-degree horizontal rotating roller conveyor. The 360-degree horizontal rotating roller conveyor comprises a machine frame, roller machines, a rotating seat, a first driving device for driving the roller machine to perform transmission, and a second driving device for driving the rotating seat to rotate, wherein an indicating pin is fixed on an output shaft of the second driving device, a circular ring seat is arranged on the periphery of the output shaft of the second driving device, the position of the circular ring seat is fixed, 360 baffles capable of achievingvertical stretching and retraction are arranged on the periphery of the outer edge of the circular ring seat in the circumferential direction, the baffles are driven by a hydraulic device, and a convex step is arranged at the bottom of the indicating needle. According to the 360-degree horizontal rotating roller conveyor, when the baffles abut against the convex step to form blocking when the baffles protrude out of the top surface of the circular ring seat so that the rotating seat can be accurately stopped at any angle, the indicating needle can be used for indicating the angle at the same time so that an operator can conveniently observe whether the angle is correct or not, and therefore, the operation is convenient.