Abstract: The core issue of autonomous vehicles is the moral choices that should be made when autonomously driving a car in a car accident. Is it to save the driver, passenger or pedestrian? Faced with this problem, scholars have put forward their own opinions from the perspective of self-driving cars. These opinions are based on corresponding ethical principles, such as utilitarianism, egoism, and Kant's obligation theory, but they all have certain problems. Starting from the driver itself, this paper proposes a method of self-selection of moral principles to solve this ethical problem. This method includes ethical intuitionism and self-predetermined moral choice. The method proposed in this paper pulls the way of thinking from the perspective of intelligent machines back to human beings, providing another perspective for the problem.