People are the core element of economic development. As a country with a large population, China will inevitably face many ensuing problems, which can be said to influence the whole society of the country, after deliberating and issuing the new three-child policy. The long‐term effects of population policies are often more certain and significant, so it is even more necessary to pave the way for such an important decision and make auxiliary preparations. This research serves to study about people's intention of fertility after the new three‐child policy and its supporting measures issued by Chinese governments and find out the major factors that influence or change the people's intention.