The invention discloses an urban rail vehicle screen cabinet comprising a cabinet body and at least one cabinet door mounted on the cabinet body, the cabinet door and/or a stand column arranged on at least one side of the cabinet door is provided with a support plate, each of two sides of the cabinet body is connected with an end plate, each end plate can rotate around a connecting point serving as a center, the two end plates are fixedly connected via a blocking rod that is supported by the support plate, the blocking rod is enabled to be horizontal and therefore the cabinet door can be locked, and the cabinet door is unlocked when the blocking rod is separated from the support plate and moves downward to a downmost position. The urban rail vehicle screen cabinet is simple in structure, the cabinet door can be effectively prevented from falling off, and hidden safety hazard caused by the cabinet door falling off can be eliminated.