The utility model relates to a propellant and explosive slurry pouring system capable of carrying out automatic control, and a pouring material cylinder is communicated with a pouring tank through a discharge valve. A suspension valve is arranged in the pouring material cylinder, the suspension valve is a cone-like structure, the outer diameter of a suspension valve body is matched with the innerdiameter of the pouring material cylinder, and the lower structure of the suspension valve body is matched with a discharge hole of the pouring material cylinder. The propellant and explosive slurry pouring system uses the suspension valve for controlling the liquid level of propellant and explosive slurry during the pouring process and closing the slurry discharge when the pouring is completed. The propellant and explosive slurry pouring system can automatically carry out real-time clearance on the slurry in the material cylinder, automatically close the system when the pouring of the slurryis completed, cannot produce gas leakage of a vacuum system, further avoid safety accidents and simultaneously reduce the operation of staff on dangerous goods.