A projection method, a projection apparatus and an electronic device are provided. The method may include: acquiring a target content to be projected in an electronic device; determining a projection parameter for the target content; adjusting a beam output mode of a light path changing module for projection beams of the target content based on the projection parameter; and based on the beam output mode, projecting, via the light path changing module, the projection beams of the target content into a first region of a projection carrier located away from the electronic device by a first distance, where the area of the first region varies with the beam output mode. With the projection method, the projection apparatus and the electronic device in the application, the area of the projection region can be adjusted easily, so that multiple users can use the electronic device to watch the projection conveniently.