The agreement was signed yesterday during the 8th US-China Internet Industry Forum in Seattle.
Didi's social ride-sharing service Didi Hitch will let users connect to the app using their LinkedIn profiles.
Didi Hitch started operations in June this year and 5 million car owners have registered for the service, according to a statement of Didi Kuaidi.
LinkedIn will help Didi Kuaidi on recruitment and training in the United States, where it has invested 100 million US dollars on Lyft, a US-based ride-hailing company, it said.
China's LinkedIn users topped 10 million as of July this year after the company launched its Chinese-language site in February 2014.
Didi Kuaidi now provides 3 million daily rides covering 80 Chinese cities through private car services for 80 per cent of the market share, and a 90-per cent share, or 3 million daily rides, for taxi-hailing services, according to data from consulting firm Analysys International, state-run Xinhua news agency reported.