Disclosed are an integrated optical assembly structure with an isolator and a processing method therefor. The structure comprises a front metal cover, a ceramic sleeve, a pressing block, a ceramic plug core and an isolator chip, wherein the ceramic sleeve is disposed inside the front metal cover; one end of the ceramic plug core is disposed inside the ceramic sleeve and the other end thereof is fixed in the pressing block; the pressing block has a plug core positioning hole and a chip accommodating hole; the chip accommodating hole has at least two positioning corners; and the isolator chip having magnetism itself is installed in the chip accommodating hole and is positioned and fixed via the positioning corners.