An intelligent cleaning robot comprises a housing, an optical module, a pickup module, a central processing module, and a drive module. The housing defines light transmission holes for the optical module, which comprise an infrared light source, a complex light source, a structure light lens to receive reflected infrared light through the holes to form a three-dimensional image, and a color lens to receive reflected light through the holes to form a color image. The central processing module can receive the three-dimensional image and the color image and form an image of an environment. The pickup module can be controlled to pick up garbage and objects in the environment according to the image of an environment, and the robot can be controlled to move on land or in water.