The disclosure provides a seat mounting structure and a train having same. The seat mounting structure includes a seat body (10), a side wall mounting member (20) and a suspension mounting rod (40), wherein a first end of the seat body is connected to a carriage side wall (30) by the side wall mounting member; one end of the suspension mounting rod is connected to a carriage roof, and the other end of the suspension mounting rod is connected to a second end of the seat body; wherein the first end of the seat body is one end, close to the carriage side wall, of the seat body, and the second end of the seat body is one end, away from the carriage side wall, of the seat body. The seat mounting structure provides an effective support for a suspension seat to improve a structural strength of the suspension seat.

A backrest for a passenger seat, in particular for a passenger seat in a bus, train and the like, includes a frame made of a metal material and an insert made of a plastic material. The insert is configured to improve the structural stiffness of the backrest.

A frame for a backrest of a passenger seat, in particular a passenger seat in a bus, train and the like, includes two lateral consoles and two support consoles. An upper headrest frame part is connected to the two lateral consoles and/or the two support consoles. The lateral consoles and the support consoles are connected to each other by means of crimping connections.