The invention relates to a shoe shell of a roller skate convenient to put on and take off. The shoe shell comprises a shoe bottom, wherein a covering structure is arranged at the front part of the shoe bottom; a leg binding part is arranged at the rear part of the shoe bottom; the shoe shell is characterized in that the rear part, which is connected to the shoe bottom in a rotatable manner, of the leg binding part can be backwards turned to be opened; the rear end of the shoe bottom is connected with a supporting rod in a rotatable manner; a backwards protruded positioning button is arranged at the upper end of the supporting rod; a positioning hole in clamped match with the positioning button is formed in the leg binding part; under a covering state that the leg binding part is upwards turned, the upper end of the supporting rod is positioned on the inner side of the leg binding part, and the positioning button on the supporting rod is clamped into the positioning hole; under the state that the positioning button is separated from the positioning hole, the leg binding part can be backwards turned to be opened. The rear part, which is connected to the shoe bottom in a rotatable manner, of the leg binding part can be backwards turned to be opened, so that a shoe inner sleeve can conveniently get into and get out of the shoe shell and can be completely taken out of the shoe shell; therefore, the shoe shell can be independently used as a daily shoe, and the problem of inconvenience in carrying of extra shoes is solved.