A fastener assembly comprising a fastener and a first fixing member, the fastener comprises: a first plate extending in a first plane and comprising a position limit column, an elastic member and at least one fastening hook (11, 12), wherein the at least one fastening hook (11, 12) comprises two fastening hooks (11, 12), and a side plate formed at one end of the fastener and extending in a second plane, wherein the first and second planes intersect each other, wherein, the elastic member is disposed at a bottom portion of the position limit column, a first fixing member comprises two fastening holes (21, 22) disposed at a portion corresponding to the fastening hooks (11, 12), the first fixing member further comprises a position limit hole disposed at a portion corresponding to the position limit column, when the fastening hooks (11, 12) are placed in the vicinity of the fastening holes (21, 22), the position limit column is pressed against the first fixing member to cause deformation of the elastic member, and the elastic member generates an elastic force in a rebound direction, when the fastener moves to a predetermined position, the position limit column falls into the position limit hole under the action of the elastic force and the fastener is fixed at a proper position, and when the position limit column falls into the position limit hole, the fastening hooks (11, 12) engage with the fastening holes (21, 22) and the fastener is fixedly connected with the first fixing member, characterized in that one of the two fastening hooks (11, 12) is disposed at one end of the fastener and at the one side of the side plate away from the elastic member, and the other one of the two fastening hooks (11, 12) is disposed at the other end of the fastener and at the other side of the side plate. a fastener and a first fixing member, the fastener comprises: a first plate extending in a first plane and comprising a position limit column, an elastic member and at least one fastening hook (11, 12), wherein the at least one fastening hook (11, 12) comprises two fastening hooks (11, 12), and a side plate formed at one end of the fastener and extending in a second plane, wherein the first and second planes intersect each other, wherein, a first plate extending in a first plane and comprising a position limit column, an elastic member and at least one fastening hook (11, 12), wherein the at least one fastening hook (11, 12) comprises two fastening hooks (11, 12), and a side plate formed at one end of the fastener and extending in a second plane, wherein the first and second planes intersect each other, wherein, the elastic member is disposed at a bottom portion of the position limit column, a first fixing member comprises two fastening holes (21, 22) disposed at a portion corresponding to the fastening hooks (11, 12), the first fixing member further comprises a position limit hole disposed at a portion corresponding to the position limit column, when the fastening hooks (11, 12) are placed in the vicinity of the fastening holes (21, 22), the position limit column is pressed against the first fixing member to cause deformation of the elastic member, and the elastic member generates an elastic force in a rebound direction, when the fastener moves to a predetermined position, the position limit column falls into the position limit hole under the action of the elastic force and the fastener is fixed at a proper position, and when the position limit column falls into the position limit hole, the fastening hooks (11, 12) engage with the fastening holes (21, 22) and the fastener is fixedly connected with the first fixing member, characterized in that one of the two fastening hooks (11, 12) is disposed at one end of the fastener and at the one side of the side plate away from the elastic member, and the other one of the two fastening hooks (11, 12) is disposed at the other end of the fastener and at the other side of the side plate.