Abstract: A method for monitoring a data chain comprises the steps of analyzing a source code to generate an abstract syntax tree, traversing the abstract syntax tree to obtain key nodes, and obtaining a data flow dependency relationship. A data chain is formed and graphically presented according to the data flow dependency relationship. The method further utilizes an interceptor to configure intercept points and key indicators at application programming interfaces of the source code, where the key indicators are graphically presented. An apparatus employing the method and a computer-readable storage medium storing the method is also disclosed.