The invention provides a mobile application development debugging method based on a wireless local area network. The method comprises the following steps: a heartbeat packet transmission instruction is provided between an application debugging service program and an application debugger to keep communication; the application debugging service program receives a user debugging instruction, and theapplication debugger sends a code list obtaining instruction to the application debugging service program; the application debugging service program analyzes a debugging type required by the current application according to the code list obtaining instruction, and sends a code list instruction to the application debugger; the application debugger analyzes a list type corresponding to the code listinstruction according to the received code list instruction, and initiates a file downloading request to the application debugging service program, and the application debugging service program makesresponse to the file downloading request; and the application debugger downloads a code file from the application debugging service program, and displays a synchronization state to the user for check. By adoption of the mobile application development debugging method provided by the invention, a lot of debugging time can be saved, thus the development efficiency of application software can be significantly improved.