The invention discloses welded pipe raw material mixing equipment which comprises a left machine frame and a right machine frame, wherein a mixing hopper is fixed between the left machine frame and the right machine frame through a rotating shaft; a brake motor and a speed reducer are arranged on the left machine frame; the brake motor is connected with the speed reducer; the speed reducer is arranged above the brake motor; a discharging valve is arranged at the lower part of the mixing hopper; a vibrator is arranged on the outer wall of the mixing hopper. The welded pipe raw material mixing equipment provided by the invention is provided with the vibrator which can generate high-frequency vibration on the wall of the mixing hopper during material distribution so as to enhance flowing of materials.