The invention relates to a garbage can capable of automatically conducting dumping. The garbage can comprises a base, a support, can bottom hinge bars, can bodies and a solar cover plate assembly. A controller, a hydraulic system and a horizontally-arranged basic rotary shaft are arranged in the base. The two ends of the basic rotary shaft are connected with limiting bearings in a sleeved mode. The limiting bearings support the basic rotary shaft and limit the rotation angle of the basic rotary shaft. Hydraulic telescopic transmission rods are perpendicularly connected to the basic rotary shaft. A spherical hinge block is arranged at the top of each hydraulic telescopic transmission rod. The hydraulic telescopic transmission rods are driven by the hydraulic system. A storage battery is further arranged in the base and used for storing electric energy converted by the solar cover plate assembly and providing energy for the hydraulic system. The support is fixed to the base and used for supporting the solar cover plate assembly. A horizontal supporting rotary shaft is hinged to the support. The horizontal supporting rotary shaft transversely penetrates through the middles of the can bodies and is hinged to the can bodies. A diagonal plane is arranged on the bottom face of each can body and transmission force receiving is facilitated. Each diagonal plane is hinged to the upper end of the corresponding can bottom hinge bar and the lower end of each barrel bottom hinge bar is in spherical hinge joint with the corresponding spherical hinge block.