The invention discloses a combined shoe comprising an upper independently provided, an insole and an outsole. The combined shoe further comprises a side belt, attached to the outer periphery of the outsole; the side belt is provided with a tongue; the outer periphery of the outsole is provided with a plurality of first fastening holes; the insole is provided with second fastening holes; the tongue is inserted into the first and second fastening holes to connect the insole and the outsole; the upper is connected to the side belt, the insole or the outsole, or the upper is connected with the side belt; the insole is fixedly connected to the outsole through positioning connectors; the tongue is inserted into the first fastening holes to connect the upper, the insole and the outsole. The combined shoe is simple in structure and convenient to assemble and disassemble and is firm, reliable and deformation resistant after combined.