The wire-wound filter element is a deep filter element used for filtering high viscosity and low impurity content. It is made of textile fiber thread (polypropylene thread, absorbent cotton thread, etc.) precisely wound on a porous skeleton (polypropylene or stainless steel) according to a specific process. It has a honeycomb structure that is sparse on the outside and dense on the inside. It can effectively remove suspended matter, particles, rust and other impurities in the fluid and has very excellent filtering characteristics.