A test method for testing a wireless human input device being totally implemented in program codes which are built in the input device is disclosed. A step (A) is to start a test of transmission quality of the input device. A sub step (a1) is to judge whether received pressing signals obtained by pressing a series of keys of a wireless emitting device are same as some predetermined activating-for-testing pressing signals. A sub step (a2) is to execute a step (B) if the step (a1) is true, otherwise to execute a step (C). A step (B) is to execute a working-mode test of the input device. A sub step (b1) is that the emitting device transmits some sequential test data. A sub step (b2) is that a wireless receiving device of the input device receives the test data from (b1), then the test data are transmitted to an electronic machine connecting to the receiving device. A sub step (b3) is that the electronic machine outputs result data of testing in corresponding to the test data. A step (C) is to execute a normal working-mode of the input device.