This study identifies the relationship between Adoption of ISO9000 with other factor players in China’s service industry. Analysis of the data from the National Bureau of Statistics of China gave the following main results; The profit made by the ISO9000 certified companies was higher than that of the non-ISO9000 certified companies. The sales made by the ISO9000 certified companies was higher than that of the non-ISO9000 certified companies. Only a very small proportion (8%, n = 460) of the companies studied have so far undergone ISO9000 certification.