The invention provides an anti-pollution collision-resistant hydraulic cone valve with a valve core provided with throttling grooves. The cone valve comprises a valve core, a valve body, an elastic valve seat, a dirt accepting small hole, a bypass runner, four throttling grooves and a built-in flow sensor. The valve core is arranged in an inner hole of the valve body, the four throttling grooves are radially formed in the cone of the head of the valve core, the throttling groove and a bump of the valve body form a back valve port, and the cone of the head of the valve core and the elastic valve seat form a front valve port. The dirt accepting small hole is located in the side wall of an upstream duct of the front valve port, and the inlet of the dirt accepting small hole communicates with the outlet of the dirt accepting small hole through the bypass runner. The built-in flow sensor is located on the downstream side of the back valve port. According to the cone valve provided by the invention, the separated replaceable elastic valve seat is arranged to absorb impact energy of the valve core to slowdown the impact wear of the valve seat of the valve core, gaps induced by particles are compensated by elastic deformation of the valve seat, particle pollution is accommodated and blocked by means of a joint action of the dirt accepting small hole and the bypass runner, the valve core is provided with the throttling grooves, and the front and back valve ports are closed asynchronously to start the opening and closing characteristic of the cone valve, so that the cone valve has an ability of preventing pollution and resisting impact and an excellent opening and closing control characteristic.