The mesh type oil filter is suitable for the filtration of lubricating oil, fuel oil and other lubrication systems of many types of marine and land diesel engines, as well as in the petroleum, electric power, chemical and other industries. The mesh type oil filter is divided into SPL double-cylinder series and DPL single-cylinder series, which are reliable in operation, convenient in maintenance, and do not require other power sources. With the characteristics of filtration accuracy and easy cleaning, SPL double-cylinder series can realize non-stop conversion and cleaning during the operation of the main engine.