The utility model provides an automatic opening type sand pump which comprises a sand storage pipe and is characterized in that the lower end of the sand storage pipe is connected with a sand shovel, a pushing check valve is arranged at the lower end of the sand storage pipe, the upper end of the sand storage pipe is connected with a pump barrel, a hollow piston and a hollow piston rod are arranged inside the pump barrel, and the upper end of the piston barrel is connected with a power oil pipe through a suction pump. According to the utility model, with the effect of a pushing valve rod and a spring, the sand pump automatically opens as soon as contacting with a sand surface, so that the problem that the sand shovel does not open flexibly and can be blocked by sand and stones easily is solved.