Multiple streams approach to tobacco control policymaking in the capital city of the world's largest tobacco consumption country.

The development of the factors of problem stream, policy stream and political stream promoted the setting of the tobacco control policy agenda in Beijing. It is suggested that more cities should learn from the experience of Beijing, seize the opportunity of the ideological change of the ruling party, actively identify the problems, mobilize and advocate representatives and introduce the concept of "social co-governance" to promote the legislation of tobacco control.