The invention provides a hinge structure for connecting a cabinet door with a cabinet body. The hinge structure is of a four-shaft connecting rod structure. Through the four-shaft connecting rod structure, the maximum opening angle of the cabinet door relative to the cabinet body can reach 180 degrees. The hinge structure adopts the four-shaft connecting rod structure, through the specific design of rotating shafts and the connecting rod structure, the opening angle of the cabinet door can reach 180 degrees, and when conducting taking and putting operation the user can be prevented from bumping the head or the legs.