The invention discloses a visual tracking method and system based on a Delta robot, and the method comprises the steps: enabling a camera on the Delta robot to build a Gaussian hybrid background model through a color histogram and texture features; obtaining target object information according to the image information, and carrying out the matching of the obtained target object information with a model matching library on the Delta robot; carrying out the visual tracking of a target object based on a structural similarity video tracking method after the positioning of the target object is completed; transmitting a visual tracking video to a control room in real time, and carrying out the warning of the state of the target object in the video display. According to the embodiment of the invention, the method can effectively detect a figure object, thereby achieving the positioning of the target, guaranteeing the visual tracking effect in an industrial control process, and achieving the preparation for the precise understanding and optimization of a figure.