Simulation test method for automatic driving function of automobile

The invention discloses a simulation test method for an automatic driving function of an automobile, which is characterized by comprising the following steps of setting a target automobile to run at a constant speed or a variable speed on a specified lane, recording position information and road information of the target automobile, and testing that a main automobile runs at a set speed behind the target automobile, performing one or more automatic driving function tests on the test main vehicle in different test scenes; when the main test vehicle does not pass the test, enabling the main test vehicle to obtain and store theoretical position information and theoretical road information of the target vehicle, close or unload a sensing system of the main test vehicle, and independently retry the test which does not pass the test; if the test is still not passed after the test again, determining that the control program of the test main vehicle has a problem; and if the test passes, determining that the sensing