Abstract: A spatial frequency response (SFE) measurement method applied for measuring an SFR of a specific area of an image module is disclosed. The method includes: utilizing the image module to obtain an image of a test pattern, wherein the test pattern includes a plurality of test areas, each test area includes a plurality of area pattern, each area pattern includes a plurality of slanted edges; calculating SFRs of area patterns corresponding to the specific area; and averaging the SFRs to obtain an averaged SFR as an MTF distribution of the specific area of the image module.