The utility model relates to a piece of mobile phone signal shielding work clothes. A clothes pocket outer layer is provided with a mobile phone signal shielding layer, the lower end of a clothes pocket is provided with a mobile power supply, a first charging interface and a second charging interface which are connected with the mobile power supply are arranged in the clothes pocket, and a charging interface is arranged at the mobile power supply side end of the first charging interface. The technical scheme is that the wireless communication signal shielding pocket is arranged in the piece of work clothes. The piece of mobile phone signal shielding work clothes is characterized in that the shielding pocket made of a metal fiber fabric is adopted and fixed in the work clothes of an operator. When entering a main control chamber of a relay protection operation site, the operator can completely shield mobile phone signals only by placing a mobile phone in the shielding pocket in the work clothes, interference to a relay protection device caused by the mobile phone signals is avoided simply and safely, and simultaneously the mobile phone can be charged through the mobile power supply interfaces which the shielding pocket is provided with under the conditions of outage.