A snow load performance apparatus for measuring shade includes a loading bag (1), an electric cylinder (2), a guide rod (3), a loading frame (4), a specimen holder (7), a laser distance measuring sensor (8) and a control system; wherein the snow load performance apparatus for measuring shade is characterized in that the loading bag (1) uniformly suspends on the loading frame (4) through a lanyard, and a bag is loaded a counter-weight of the quality calculated according to the standard; the shade needing measure is fixed on the specimen holder (7); the loading frame (4), the surface of which is vertically connected with the bottoms of the guide rod (3) and the electric cylinder (2), is arranged on the vertically upper space of the specimen holder (7); the electric cylinder (2) can manageably perform the loading frame (4) along up or down direction to offset, and perform the loading frame (4) along the guide rod (3) to make vertical movement; the laser distance measuring sensor (8) measures a displacement of the electric cylinder, the loading frame and the shade; the control system includes a control box (5) which is used to dispose a integral running program of the loading frame and the loading bag.