Composites of carbon fiber is widely used,but manufacturing carbon fiber needs a great deal of cost,so it will produce a significant economic benefits if there is a good method to recycle carbon fiber.The Writers make a studying on the method of incineration,concluded that the most appropriate temperature is 550 ° c through the experiment by setting a series of temperature gradient.Then take the recycled carbon fiber as a raw material combines with the new resin to make regenerated composite material by hand lay-up,when testing the tensile strength and impact toughness between the regenerated composite material and intact composites,it`s found that the performance of regenerated composite material only between 35% to 40% percent of intact composites.It`s easily to produce the phenomenon of Stress concentration by analyzing experimental process.The heating rate of resin content and curing process will affect the properties of the recycled material.