In recent years, Chinese enterprises have gradually become an important force in international overseas project contracting market. Cultural factors are becoming the focus for managers among a number of influent factors. Cultural Rigidities, the character of not being easily changed, lead to agitation and collision between the host culture and the local culture. And then Culture Rigidities can cause cultural risks and management failures. It is of great significance for overseas projects that seek common ground between two different cultures by using Johari Window theory effectively and create a unique "third" culture in order to overcome path dependence.