The automatic backwash filter for automobile water treatment is a kind of tubal Johnson screen. It is composed of rib and V-profile wire rolling welded on the special welding machine. Automatic backwashing filter has the function of filtering raw water and cleaning the filter element automatically. Compared with the previous filters, the equipment has the advantages of high automation, large amount of treatment, self-cleaning of sewage, uninterrupted water supply, wide application and so on.