"Both sides of the Taiwan Strait are one family" () is a political slogan used by the Chinese Communist Party (CCP) in regard to cross-strait relations. The CCP uses the slogan to emphasize perceived blood ties between the people of mainland China and Taiwan to promote Chinese unification.
The term was first coined by CCP general secretary Xi Jinping in 2013.
In 2021, the 19th Central Committee of the CCP approved of a historical resolution, which put the both sides of the Taiwan Strait are one family at as part of CCP's Taiwan policy.