Multifunctional handheld cover

A multifunctional handheld cover is applicable to a shell body of a handheld electronic device, and comprises a support belt and first clamping parts. The support belt has a property of shape memory, and comprises a bending part and two sliding parts. The bending part is connected with the two sliding parts. The shell body is provided with a guide rail, wherein the sliding parts are respectively arranged at two ends of the guide rail in a sliding mode. The first clamping parts are respectively arranged on the two sliding parts. The guide rail is provided with a plurality of second clamping parts. The first clamping parts are clamped with the corresponding second clamping parts. When the sliding parts are pushed along the guide rail through push force, structural interference with the second clamping parts is removed by the first clamping parts, the sliding parts are enabled to slide along the guide rail to a fixing position, the first clamping parts are clamped with the second clamping parts corresponding to