The utility model discloses a knee support brace comprising: a sleeve of substantially tubular elastic material adapted to fit around a knee joint of a human limb, a compressed protection pad attached at the central front portion of said sleeve, and an anti-slip silicon strip provided on the upper inner portion of said sleeve. The protection pad provides protection from impact for the kneecap region and the silicon strip prevents the sleeve from going down due to movement and/or sweating of the human limb.