In order to study the performance of waste tire rubber (WTR) and waste plastic ethylene vinyl acetate (EVA) composite modified asphalt mixture, five kinds of composite modifier contents (5%WTR+4%EVA, 10%WTR+4%EVA, 15%WTR+4%EVA, 15%WTR+0%EVA, 15%WTR+6%EVA) were used to prepare AC-13C asphalt mixture. And the Marshall test, rutting test and low temperature splitting test were conducted to study the high and low temperature performance of the composite modified asphalt mixture. The results showed that, the high temperature properties of base asphalt can be improved by mixing WTR and EVA. Especially, the asphalt was mixed with 15%WTR and 4%EVA, the high temperature performance was significantly improved. And the 15%WTR+4%EVA modified asphalt mixture had the maximum dynamic stability and the minimum flow value, which indicated the optimum high temperature performance. Compared with base asphalt mixture, the low temperature splitting strength of 15%WTR+4%EVA and 15%WTR+6% EVA modified asphalt mixture were increased by 22.8% and 34.8% respectively. The comprehensive optimal modified content is 15%WTR+ 4%EVA.