PURPOSE: To provide a sintered type filter enhanced in capture efficiency of a foreign matter and filtration accuracy and remarkably improved in filterability and reliability by effectively combining the filterability of a linear metallic fiber with the filterability of a curved fine metallic fiber.

CONSTITUTION: This filter is provided with the 1st filtration fiber layer 10 made by laminating and sintering the linear metallic fiber 1 formed into polygonal shape in cross section by machining or cutting method or the like and the 2nd filtration fiber layer 20 made by laminating and sintering the curved fine metallic fiber 2 formed into circular like shape in cross section by bundling and drawing system or the like and by superposing on the 1st filtration fiber layer 10. And an intermediate filtration fiber layer made by laminating and sintering a linear metallic fiber having fine diameter and formed into polygonal shape in cross section by machining or cutting method or the like and by superposing between the 1st filtration fiber layer 10 and the 2nd filtration fiber layer 20 is provided.