Abstract: The present invention relates to an air roll unit for container car, and more particularly to, a container car, characterized in comprising: a main frame having a rail formed by longitudinal direction, and a joint formed on both sides; a tube inserted into the rail of the main frame with an air nozzle on both ends; a roll plate fixed on the top of the tube; and a connection frame pressedly fixed to the rail of the main frame neighbored and combined into one end of the roll plate. According to the present invention as above, manufacturing costs and terms can be relatively reduced by enabling to unify a baseplate and a roll plate and extend the adjoining baseplate and roll plate.