The invention provides a network security scanning function implementation method based on graphical programming. The network security scanning function implementation method comprises the steps: constructing a graphical module based on name + parameter, realizing basic atomic functions in a network security scanning tool, wherein the function of each atomic function module is indicated through the names, and double-clicking primitives corresponding to the atomic function modules to pop up a parameter configuration interface to realize self-defined configuration of the parameters; compiling each constructed graphical module into a code logic sequence which can be normally executed by constructing a logic generation tree; and performing automatic error detection processing on a result constructed by the graphical module, thereby realizing a network security scanning function based on graphical programming. According to the scheme, on one hand, rapid generation and diversified configuration of an existing scanning tool can be achieved; and on the other hand, a new scanning tool can be flexibly customized and generated for newly appearing security problems and vulnerabilities, and the timeliness of the tool is improved.