The standard competition of system proucts has been an important issue from 1950s till today, such as the competitiom of Wireless Lan security protocol WAPI¡BDVD palyer standard and the competiton of TD-SCDMA of 3G system in telecommunication industry. The situation is becoming more and more complicated because of more integration of information and technological products.Recent years, Mainland China as a developing nation try to develop a new standard strategy model and to make the industrial standards belong to China. This paper discovers the major key factors that affect the abilities to join the standard competiton of developing countries. This paper discusses major standard competition related papers and find out five key factors that affect the abilities to join the standard competiton of developing countries: Technological Innovation abilities, entry timing, complementary products network, products installed base and government supporting. Use these five factors to analyze four important China cases od standard competiton.