The thermal- oxydative ageing properties of ZN-1 damping rubber materials were investigated by using accelerated ageing test , then the relations between different ageing temperatures and ageing time and mechanical properties and damping properties of ZN-1 damping rubber materials were obtained . The results showed that with increasing ageing temperature and time , the tensile strength of ZN-1 damping rubber materials firstly decreases to a certain value and then increases ; the tensile elongation of ZN-1 damping rubber materials decreased . Finally , the ageing mechanisms of ZN-1 damping rubber materials were deduced from some analyses of the relation between macroscopical properties and microstructure