The invention relates to the technical field for a train carriage, in particular to a suspended type emergency conveying system for the train carriage. The suspended type emergency conveying system consists of a fixing frame, connection boards, an inclined plane, a carriage boundary plate trailer, an in-carriage sliding trailer, a fire resisting shutter, bolts, a sliding groove strip, a sliding board motor, a plate trailer motor, a guardrail and a shutter handle. The in-carriage sliding trailer is arranged in each carriage, and sliding plate wheels at the left edge and the right edge of the in-carriage sliding trailer are respectively located in a sliding groove of the sliding groove strip at the top of the carriage. In a use process, the carriage boundary plate trailer is arranged on the in-carriage sliding trailer, and the transition of the connection of each two adjacent carriages is realized through the connection boards which are mutually overlapped. According to the suspended type emergency conveying system, by using the overhead spare space in the carriage as an emergency rapid channel of a railway policeman, the railway policeman can rapidly arrive at an accident carriage through a space above passengers crowded in the carriage during a spring festival travel peak and a student school-returning peak during winter and summer vacations.