This high pressure filter is installed in the hydraulic system pressure pipeline to filter out solid particles and colloidal substances in the working medium, effectively controlling the pollution level of the working medium. Its structure and connection form are easy to integrate and assemble with other hydraulic components, and a differential pressure transmitter and bypass valve can be configured as needed. The filter elements are made of composite glass fibers, filter paper, stainless steel sintered felt, and stainless steel woven mesh. The upper and lower shells are processed and formed with high-quality alloy steel, with a beautiful appearance.