The invention relates to a composite of hydrolyzed collagen and avenin with the weight proportion of 0.2-1.0:0.2-1.0. Meanwhile, the invention also provides the application of cream, latex, aqua, jelly, mask and other formulations of the composite in the hand care, feet care, anti-aging, after-sun treatment and hydrating nutritive skin care products. The composite of hydrolyzed collagen and aveninprovided by the invention can improve the water holding capability of the skin, enhance the permeability of the skin and increase the content of the collagen in the skin; meanwhile, the composite ofthe invention can promote the metabolism of the skin, accelerate the healing of wounds and delay the aging of the skin. When the skin care products added with the composite are used, the skin can holdmoisture for a long time and become moist and smooth.