The concrete of different initial stress damage degrees including 00.1, 0.10.2 and 0.203(by both rate of mass loss and relative dynamic modulus of elasticity）, was investigated by adopting quick freeze thaw experiments in laboratory along with control concrete for C30 in order to study the influence of initial stress damage on concrete properties subjected to freeze thaw cycles. Experimental results show that the freeze thaw resistance of stress damaged concrete gets poor compared with the control. The initial stress damage within 0 to 0.1 has only little effect on concrete performance, which can be ignored; however, the initial stress damage exceeding by 0.1 has a significant effect on concrete performance. Also, with the analysis of freeze thaw damage evolution process, the mechanical damage evolution equation including both stress damage and freeze thaw damage of concrete is established.