Under the influence of the revolutions in the southwestern States, on March 13, workers, students and citizens in the Austrian capital held anti-government demonstrations, "Down with metternich!" "Long live constitutionalism!" Waiting for the slogan to resound through the city. The demonstration soon turned into an armed uprising, and the masses fought bloody battles with the government forces. Metternich, the Prime Minister, was so frightened that he was forced to resign and fled Vienna in disguise. Faced with this situation, Emperor Ferdinand was forced to make concessions, announced that he would immediately formulate a constitution, set up a new cabinet with bourgeois representatives, and agreed to set up a national guard and a student army composed of college students. Soon, the Constitution of King James was promulgated, which provided the emperor with great power. Subsequently, the electoral law was promulgated, which restricted high property qualifications and deprived the lower class of the right to vote. The masses are extremely dissatisfied with such "constitutionalism" and are determined to push the revolution further. 14 in may, the government ordered the dissolution of the student army and the closure of Vienna university, which triggered the new people's uprisings in Vienna on may 15 and may 26. The victory of the uprising forced the government to withdraw its order to dissolve the student army, announced its withdrawal from Vienna, and promised to convene a constitutional conference to re-enact the constitution and amend the electoral law.

Metternich's downfall greatly inspired the people of Berlin. On March 6th, 2008, the revolutionary masses surrounded the palace and demanded that King Frederick William IV withdraw his troops from Berlin. The king ordered the army to shoot at the crowd, which aroused an armed uprising. After a fierce battle day and night, the government troops were defeated. Frederick William IV was forced to order a truce, and announced the immediate convening of the National Assembly, the formulation of a constitution, the reorganization of the government, the release of political prisoners, and the withdrawal of troops stationed in the city. On March 29th, the king appointed Poundhausen, the representative of Yinqu big bourgeoisie, to form a cabinet. Cabinet ministers include A Ning Boweisenberg, the representative of Yong Ke, Schwiering, a noble landlord, hansmann, a banker, representatives of bourgeois conservatives and politicians. This is a government where the bourgeoisie and Juncker compromise. On April 2, Comphausen held a meeting to raise the issue of formulating a constitution and an electoral law.

On April 8, a two-level election law was promulgated. The masses protested against the election law and decided to hold a big demonstration on April 20. However, the government prevented this action. By the end of March, William IV had transferred his troops back to Berlin and regained control of the situation. It was in this atmosphere that the newly elected National Assembly officially opened on May 22nd. Among the 400 members of parliament. 150 people support the dynasty. There are about 100 left-wing MPs who insist on revolution, and the rest are centrists. Generally speaking, the representatives of the bourgeoisie are dominant.

William IV delivered a speech at the opening ceremony, stressing that the Constitution must be in harmony with the royal family. The Comphausen Cabinet submitted a draft constitution to Parliament. This was formulated with reference to the Constitution of the July Dynasty in France and the Constitution of Belgium. It stipulates that Prussia implements a constitutional monarchy and gives the king great power. At that time, the masses were deeply dissatisfied with this. In June, Berlin people demonstrated many times and clashed with the military and police at 14, which was suppressed. In parliament, Comphausen's government was attacked by the left for suppressing mass movements, opposed by the right for advocating constitutionalism, and isolated. On June 20th, Comphausen resigned and the cabinet collapsed. On June 25th, the king appointed a new cabinet headed by Olsworth.