The invention discloses a door opening method and device. The door opening method includes the steps that when it is judged that when hands of a user are occupied, whether the user is allowed to enter a door or not is judged through identity recognition; when it is judged that the user is allowed to enter the door, the door is opened for the user, and the door can be opened without manual operation of the user. Thus, when the two hands of the user are occupied and the door cannot be manually opened, the door is automatically opened for the user through identity recognition, convenience is brought to the user, time is saved for the user, and user experience is improved.