Abstract: A system and a method of parsing web page element to detect web page vulnerability and a recording medium thereof are provided. The method includes parsing elements in a target web page after requesting a web page server for the target web page, fetching attackable elements from the parsed elements and converting the attackable elements into attackable components, and then using all of the attackable components to perform a penetrable test on the web page server, so as to download more indirect web pages, thereby increasing the test coverage. Moreover, repetitive or test-free elements can be filtered by converting the attackable elements into the attackable components, so as to accelerate the detection.