A protective case for a mobile terminal , the mobile terminal comprising a middle frame , a slider slidable relative to the middle frame , and an electronic assembly disposed in the slider ; the protective case comprising: a first shell having a body portion and a rim portion ; wherein the rim portion is fixed to a periphery of the body portion ; and a second shell having a strength less than a strength of material of the first shell ; wherein the second shell is fixed to an inner side of the rim portion that faces towards the body portion , such that a receiving space configured to receive the mobile terminal is defined by the first shell and the second shell ; wherein the periphery of the body portion comprises: a first straight edge , connected to the rim portion ; a second straight edge , disposed opposite to the first straight edge and connected to the rim portion ; and a first edge , disposed between the first straight edge and the second straight edge and disconnected to the rim portion ; characterized in that the first shell is made of Kevlar and the second shell is made of polyurethane; wherein the first edge comprises a central region and two edge regions connected to two opposite ends of the central region ; wherein the central region is recessed in a direction towards a middle of the body portion with respect to the two edge regions , and a transmission area is defined by the central region and the edge regions ; and wherein, when the slider retracts into the middle frame , the electronic assembly is hidden in the middle frame ; and when the slider extends out of the middle frame , the electronic assembly is exposed out of the protective case via the transmission area . a first shell having a body portion and a rim portion ; wherein the rim portion is fixed to a periphery of the body portion ; and a second shell having a strength less than a strength of material of the first shell ; wherein the second shell is fixed to an inner side of the rim portion that faces towards the body portion , such that a receiving space configured to receive the mobile terminal is defined by the first shell and the second shell ; wherein the periphery of the body portion comprises: a first straight edge , connected to the rim portion ; a second straight edge , disposed opposite to the first straight edge and connected to the rim portion ; and a first edge , disposed between the first straight edge and the second straight edge and disconnected to the rim portion ; a first straight edge , connected to the rim portion ; a second straight edge , disposed opposite to the first straight edge and connected to the rim portion ; and a first edge , disposed between the first straight edge and the second straight edge and disconnected to the rim portion ; characterized in that the first shell is made of Kevlar and the second shell is made of polyurethane; wherein the first edge comprises a central region and two edge regions connected to two opposite ends of the central region ; wherein the central region is recessed in a direction towards a middle of the body portion with respect to the two edge regions , and a transmission area is defined by the central region and the edge regions ; and wherein, when the slider retracts into the middle frame , the electronic assembly is hidden in the middle frame ; and when the slider extends out of the middle frame , the electronic assembly is exposed out of the protective case via the transmission area . <EOS>