The utility model discloses a multi -functional test -tube rack can avoid light, including test -tube rack body, test -tube rack body includes upper layer board, lower layer board and side plate, and the bottom of lower layer board is equipped with rear recess, and the lower part of rear recess left and right sides is equipped with slide rail, and the embedding of slide rail between is equipped with three -sided folding light shield, and the side plate is equipped with upper recess, and the built -in of upper recess has liftable light -shielding side plate, and three -sided folding light shield is pulled out and covers the back, top and front of test -tube rack body. The utility model discloses through test -tube rack body side setting upper recess with liftable light -shielding side plate, test -tube rack bottom setting rear recess with three -sided folding light shield, when carrying out light -proof experiment, first liftable light -shielding side plate is pulled up and fixed from upper recess, then three -sided folding light shield is pulled out and covers to the back, top and front of test -tube rack from rear recess, realizes the light -shielding function, after experiment, three -sided folding light shield is lifted and put into to rear recess, and liftable light -shielding side plate is inlayed to upper recess, and the convenient carrying is suitable for the promotion.