The invention relates to a moving and supporting mechanism for observing the surface of a silicon chip, comprising a hollow supporting post which is vertically arranged and is driven by a horizontal motor to horizontally rotate, wing lugs respectively extend from the upper end and the lower end of the supporting post, a crank motor is fixed on the wing lug at the lower end, an output shaft of the crank motor is connected with a crank disc, the eccentric point of the crank disc is connected with a hollow link rod by a rotating shaft, a swinging handle of a sucking disc is pivoted between the two wing lugs which extend from the upper end of the supporting post, the front end of the swinging handle of the sucking disc is pivoted on the top of the link rod, an autorotation motor is arranged in a cavity of the swinging handle of the sucking disc, an output end of the autorotation motor is connected with a rotating shaft of the sucking disc, and the rotating shaft of the sucking disc extends out of the swinging handle of the sucking disc to be connected with another sucking disc; and vacuum air channels which are mutually communicated are arranged on the link rod, the swinging handle of the sucking disc, the rotating shaft of the sucking disc and the sucking disc. The sucking disc is driven by the motors of the mechanisms and can carry out rotation, revolution and pitching to form three kinds of composite spherical motion; and the invention solves the problems of pitching matitation and large-area adsorption, and can be widely popularized and applied.