Recently, Chindia is rising as new global economic powers; and these two countries continue to grow rapidly by huge territory, overwhelming population, and enormous natural resources. Korea, maintaining national competitiveness through export, is reaching to 40% exportation in IT industry. From that, export proportion of China has exceeded 30% and India is IT exporting country which is spotlight on the foundation of huge young population. This study is to find a way for successful Chindia IT industry and mutual cooperation strategy in Korean business environment through identifying CSFs(Critical Success Factors). CSFs study has been selected as the most appropriate research method as successful Chindia IT industry and mutual cooperation strategy in Korea is in the early stage of development. Major results of this study can be condensed into these two. First, let’s look into major success factors of advancing into Chindia. In case of China, responders answered professionalism of IT as the best. The other factors were considered to be important in order of innovation leader, effect of company, industrial type, and familiarity to Korea. On the contrary, these were considered unimportant: maturity of information system, pressure of competition, and infrastructure. In case of India, innovation leader was the most important. The other was in order of effect of company, the time elapsed, understanding culture of advancing country, and educational level. But responders considered these factors as unimportant: uncertainty of circumstance, supporting from government, pressure of competition. It was revealed that both of Chinese and Indian responders considered innovation leader and effect of company as important factors. Second, we analyzed difference of success factors between responders of China and India. It was showed that they had different valuation except for innovation leader, industrial type, pressure of competition, educational level, uncertainty of circumstance, vertical relationship, condensability of information, and technologic policy of company. Among the success factors, educational characteristics (the time elapsed, educational level, understanding culture of advancing country) was estimated more important by responders of company advanced into India than China. Responders of China put more importance on characteristics of policy (supporting from government, technologic policy of company). As the extension line of dynamic national Internet business, these results indicate standard of successful advancing into Chindia. So it shows business model to advance into Chindia of national companies and it is expected to contribute to raising national competitiveness power at the end. From the point of company’s strategy, especially through developing successful business model which reflected real state of national companies, it can help companies to make strategy by giving practical device to revitalizing of advancing into Chindia.