Automatic leaf filter is innovatively developed by combining advanced technology home and aboard. It is a new type filter, which can concentrate and filter medium. The leaf filter can work at various pressures, with the maximum design pressure 1.0MPa. Therefor it can meet filtration of medium of low solid, high viscosity, difficult to filter etc. Additional, it is one of the most advanced fine filtration equipment with the features of high automation, long life of cloth, low running cost, easy operation and maintenance. The leaf filter can be widely applied in industries of Chemical, Petroleum, Paint, Food and Pharmaceutical etc.