The Beiyang government was the internationally recognized government of the Republic of China between 1912 and 1928, based in Beijing. It was dominated by the generals of the Beiyang Army, giving it its name.

Beiyang general Yuan Shikai gave Sun Yat-sen the military support he needed to establish the Republic of China in 1912. Through his control of the army, Yuan was quickly able to dominate the new Republic as its president. Although the government and the state were nominally under civilian control through the Republic's constitution, Yuan and his generals were effectively in charge of it. After Yuan's death in 1916, the army split into various warlord factions competing for power, leading to a period of civil war called the Warlord Era. Nevertheless, the government maintained its legitimacy among the great powers, receiving diplomatic recognition, foreign loans, and access to tax and customs revenue.

Its legitimacy was seriously challenged in 1917, by Sun Yat-sen's Guangzhou-based Kuomintang (KMT) government movement. His successor Chiang Kai-shek defeated the Beiyang warlords during the Northern Expedition between 1926 and 1928, and overthrew the factions and the government, effectively unifying the country in 1928. The Kuomintang proceeded to install its nationalist government in Nanjing; China's political order became a one-party state, and the Kuomintang government subsequently received international recognition as the legitimate government of China.

Under the Provisional Constitution of the Republic of China, as drawn up by the provisional senate in February 1912, the National Assembly (parliament) elected the president and vice president for five-year terms, and appointed a premier to choose and lead the cabinet. The relevant ministers had to countersign executive decrees for them to be binding. The most important ministries were army, finance, communications, and interior. The navy ministry's importance declined significantly after most of its ships defected to the South's Constitutional Protection Movement in 1917. The communications ministry was also responsible for transportation, mail, and the Bank of Communications and was the base of the influential Communications Clique. The interior ministry was responsible for policing and security while the weaker ministry of justice handled judicial affairs and prisons. The ministry of foreign affairs had a renowned diplomatic corps with figures such as Wellington Koo. Because the generals required their skills, the foreign affairs ministry was given substantial independence. The ministry's greatest accomplishment was the 1922 return of German concessions in Shandong that were seized by Japan during World War I, which greatly boosted the government's reputation. The foreign affairs ministry successfully denied the South's government of any international recognition all the way until the Beiyang government collapsed. China was a founding member of the League of Nations.

The assembly was bicameral with a senate that had six-year terms divided into two classes and a house of representatives with three-year terms. The senators were chosen by the provincial assemblies and the representatives were chosen by an electoral college picked by a limited public franchise. The task of the assembly was to write a permanent constitution, draft legislation, approve the budget and treaties, ratify the cabinet, and impeach corrupt officials. An independent judiciary with a supreme court was also provided. Early law codes were based on reforming the Great Qing Legal Code into something akin to German civil law.

In reality, these institutions were undermined by strong personal and factional ties. Overall, the government was extremely corrupt, incompetent, and tyrannical. Most of the revenue was spent on the military forces of whichever faction was currently in power. The short-lived legislatures did have civilian cliques and debates, but were subject to bribery, forced resignations, or dissolution altogether.^{[citation needed]}

During the Warlord Era, the government remained very unstable, with seven heads of state, five caretaker administrations, 34 heads of government, 25 cabinets, five parliaments, and four charters within the span of twelve years. It was near bankruptcy several times where a mere million dollars could decide the fate of the bureaucracy. Its income came primarily from the customs revenue, foreign loans, and government bonds, as it had difficulty collecting taxes outside the capital even if the surrounding regions were controlled by allied warlords. After the 1920 Zhili–Anhui War, no taxes were remitted to Beijing other than Zhili province.

The origins of the Beiyang government lie in the aftermath of the First Sino-Japanese War of 1895, after which the defeated armies of the Qing dynasty instituted a series of military reforms known as the New Army reforms, headed by general Li Hongzhang. Among the regional armies that emerged from these reforms was the Beiyang Army, named such due to being primarily based in the Beiyang region. Commanded by general Yuan Shikai, the Beiyang Army grew to become the largest and most modernized of China's New Armies, and Yuan began to become a highly influential figure in the Qing government. In 1907, Yuan was appointed to the high positions of Grand Councillor and Secretary of Foreign Affairs, which he held until being relieved of both positions by Imperial Regent Prince Chun in 1909.