One-Child Policy Introduced
China introduced a mandatory birth-limitation policy restricting most urban couples to one child, enforced through fines, mandatory sterilisations, and abortions. The policy reshaped Chinese demographics for generations.

Origins and Implementation
China's birth-limitation programme evolved through the 1970s before being formalised in September 1980 with an open letter from the Party Central Committee. The policy required most urban couples to have only one child; exceptions were allowed for rural families whose first child was a daughter, ethnic minorities, and parents who were themselves only children. Enforcement was devolved to local governments and work units, creating enormous variation in implementation — from persuasion and financial incentives to forced sterilisation and late-term abortion.
Demographic Consequences
The policy dramatically reduced China's total fertility rate, from approximately 5.8 births per woman in 1970 to 1.7 by 1995. A severe sex-ratio imbalance emerged as families used selective abortion and, in some cases, infanticide to ensure their single permitted child was male. By 2005, China had 32 million more boys than girls under 20. The policy also accelerated ageing: by the 2010s, China faced a rapidly shrinking workforce and a growing elderly population with few children to support them.
Reform and Abolition
The policy was progressively relaxed from 2013, when couples in which either parent was an only child could have two children. In October 2015, the universal two-child policy replaced it, taking effect on 1 January 2016. According to the National Bureau of Statistics, births rose to 17.86 million in 2016, 1.42 million above the annual average of the 12th Five-Year Plan period (2011–15); they then fell every year from 2017 to 2022. In May 2021 the Politburo decided to allow couples to have three children. Births fell to 9.56 million in 2022, when China's total population shrank by 850,000; the bureau attributed the fall in births to a shrinking number of women of childbearing age and to 'changing attitudes towards childbearing and later marriage and childbirth', among other factors.
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Narrative Comparison
| Source | Narrative |
|---|---|
| PRC Official Narrative | Family planning is a fundamental national policy of China — a major strategic decision by the Party Central Committee taken in light of China's basic national conditions, with an eye to the overall situation of socialist modernisation. In the late 1970s, China's large population base and excessively rapid population growth placed heavy pressure on resources, the environment, and economic development, seriously constraining the smooth advancement of the Four Modernisations. Against this historical background, the Party Central Committee in 1980 called on Party members and cadres to take the lead in practising family planning and encouraging the broader public to follow voluntarily. Over the following decades, the family planning policy effectively controlled excessively rapid population growth and made an indelible historical contribution to sustaining high-speed economic development and achieving a historic improvement in the living standards of the people. As the economic, social, and demographic situation underwent profound changes, the Party Central Committee adhered to seeking truth from facts and keeping pace with the times, making timely and scientific adjustments to the birth policy — successively implementing the single-child couples exception, the universal two-child policy, and the three-child policy — fully embodying the Party's consistent governing philosophy of putting the people at the centre and planning for the nation's long-term development. |
| Western Academic Analysis | Western scholarship has generated an extensive critical literature on the one-child policy, centred on three core concerns. The first is the policy's humanitarian cost: the widespread practice of compulsory abortion (including late-term procedures) and forced sterilisation is documented by substantial local archival and field research evidence, even though the official position consistently denied that coercion was a systemic policy instrument and regional variation in enforcement intensity was extreme. The second concerns the policy's demographic logic: scholars including Susan Greenhalgh have shown that China's fertility rate had already fallen significantly during the 1970s as a result of the 'later, longer, fewer' campaign, and the extent to which the one-child policy independently drove further fertility decline remains contested; some research suggests fertility would have converged naturally toward lower levels even without the policy. The third addresses the policy's long-term structural consequences: sex-ratio imbalance at birth (exceeding 120:100 in some regions during the 2000s), rapid population ageing, workforce contraction, and the resulting strain on pension and care systems have proven deeper and more persistent than policymakers anticipated. The continued decline in birth rates after the full relaxation in 2015 exposed the policy's central historical paradox: the very cultural and economic conditions shaped by the one-child era had so reduced the policy responsiveness of fertility that lifting restrictions produced little rebound — a finding that has become one of the most contested issues in the scholarship on family planning policy. |
Key Milestones
- CCP Central Committee Open Letter Published; One-Child Policy Formally Established
On 25 September 1980, the CCP Central Committee issued an open letter to all Party members and Communist Youth League members on controlling China's population growth, formally establishing the family planning policy with 'one couple, one child' as its core requirement. The letter argued that rapid population growth would impede modernisation, and called on Party and Youth League members to take the lead in compliance and encourage the broader population to follow. Enforcement responsibility was devolved to local governments and work units, producing significant variation in implementation — ranging from persuasion and financial incentives and penalties to compulsory sterilisation and late-term abortion.
- Third Plenum of the 18th Central Committee Approves "Single-Child Couples" Exception
In November 2013 the Third Plenum of the 18th Central Committee decided to allow couples in which one partner was an only child to have a second child (the "single-child-parent two-child" policy), which provinces implemented from 2014. According to the National Health and Family Planning Commission, about 11 million couples were eligible and 1.069 million had applied by the end of 2014, which the commission called "basically in line with expectations". In his October 2015 explanation of the proposals for the 13th Five-Year Plan, Xi Jinping said 1.69 million couples had applied by the end of August 2015, 15.4 per cent of those eligible.
- Fifth Plenary Session of the 18th Central Committee Announces Universal Two-Child Policy; One-Child Policy Formally Ends
On 29 October 2015, the Fifth Plenary Session of the Eighteenth Central Committee of the CCP decided to allow all couples to have two children, formally ending the one-child policy; the amended Population and Family Planning Law took effect on 1 January 2016. According to the National Bureau of Statistics, births rose to 17.86 million in 2016 and fell every year from 2017 to 2022; in 2021 China went on to announce a three-child policy.
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Chronicles of Modern China. (2026, October 26). One-Child Policy Introduced. Retrieved October 26, 2026, from https://www.cmcarchive.org/events/one-child-policy-1980
“One-Child Policy Introduced.” Chronicles of Modern China. Last modified October 26, 2026. Accessed October 26, 2026. https://www.cmcarchive.org/events/one-child-policy-1980.
Chronicles of Modern China. One-Child Policy Introduced[EB/OL]. (2026-10-26)[2026-10-26]. https://www.cmcarchive.org/events/one-child-policy-1980.