Abstract: Innovation is the key to sustainable development for enterprises in the era of big data and AI. Based on the theory of social exchange, organizational support theory and organizational identity theory, the author studies the cross-level influence mechanism between employment relationship model and employee innovation behavior from the organizational level through a survey of 300 employees in 10 enterprises in Fujian,Zhejiang and Guangdong and comes to the following conclusions. First, employment relationship has a significant positive impact on employee innovation behavior; second, organizational support plays an intermediary role between employment relationship and employees innovation behavior;third,organizational identity has a regulatory effect between employment relationship and employee innovation behavior. The results suggest that enterprises must take both economic and social factors into consideration when establishing employment relationship so that the strong bond between enterprise and employees may drive the employees to innovation behavior and thus promote enterprise development.

Key words: employment relationship, employee innovation behavior, organization support, organizational identity, the theory of social exchange