Overseas Chinese is an important mediator，facilitator and participant in the construction of the 21st-Century Maritime Silk Road along with the countries or regions along the path of the sea. The Belt and Road Initiative initiative provides better conditions for Chinese overseas Chinese mobile. This book discusses they may play in the The Belt and Road initiative in the role and the restriction of. In Chinese study，in Fujian Province as an example. Analysis domestic enterprises to use Chinese resources out to the existence of some problems，and to explore the Thai Chinese social relation network and its limitations，and the RMB exchange rate of Seacell along the country’s economic. Since the mid-90s of the 20th century，the number of new immigrants also rose sharply，in the case of the Philippines，the United States and Africa new overseas，analyzes them with past Chinese immigrants in the motivation，cultural integration and life encounter the problem of difference.