A method and a system for quickly starting a camera based on eyeprint recognition may include storing a camera initialization procedure for a power-up initializing camera of a mobile terminal in a singleton pattern class of the camera, and detecting whether the screen of the mobile terminal is illuminated or not; when it is detected that the mobile terminal screen is illuminated, directly acquiring the camera initialization procedure in the singleton pattern class to complete the power-up initializing of the camera, directly displaying an image captured by the camera while starting eyeprint recognition software, and acquiring a user's eye image to complete eyeprint unlocking.