After graduating from high school, he worked as an employee in the Ministry of Labor, founded the Peasants Front of Indonesia, and participated in political activities in Madiun.

After the enactment of the law, he began to implement land reform in Indonesia, but failed due to the prolonged conflicts between various political groups.

In 1989, seven years before his death, he was accused of being a communist by Soegiarso Soerojo, a book author, and Ruben Nalenan, a lecturer from Untag.

He continued his studies at the Meer Uitgebreid Lager Onderwijs (equivalent to junior high school) and graduated in 1937.

[4][5] During this time, Sadjarwo became one of the founding members of the Peasants Front of Indonesia and served as the organization's vice chairman.

[4][5] He was appointed in 1947 as a member of the Working Body of the Central Indonesian National Committee, representing the Peasants Front of Indonesia.

During this time, Sadjarwo issued a decree to temporarily confiscate 248 Dutch plantations and farm companies in Indonesia.

[21] Even though Sadjarwo left the Peasants Front of Indonesia in 1956, official reports still stated his affiliation to the organization in the Djuanda Cabinet, which was formed in 1957.

The draft was submitted to the People's Representative Council on 24 April 1958 by the Minister of Agrarian Affairs at that time, Soenarjo.

The leader of the Communist Party of Indonesia, D. N. Aidit, stated that the land reform in Java, Madura, and Bali must be done by the year 1963, and if not, the landlords must be arrested.

These continued conflicts eventually thwarted land reform efforts, and the issue was not raised by the New Order government until recently.

[32] After the New Order, a large-scale arrest was launched against members of Communist Party of Indonesia-affiliated organizations, including the Peasants Front of Indonesia.

[33] As Sadjarwo had left the organization many years before, he was safe from being branded a communist collaborator,[34] but student demonstrators demanded his resignation as minister.

[35] Sadjarwo resigned from his position in 1966, but two years later, he was elected as the member of the Working Body of the People's Consultative Assembly on 29 February 1968 from the Indonesian National Party, replacing Hardi.

[37] Sadjarwo's official resume for the People's Representative Council does not include his connections to the Peasants Front of Indonesia.

[37] After the 1971 People's Representative Council officially ended on 1 October 1977, Sadjarwo became the rector of the Untag (17 August 1945 University) beginning in 1986.

[34] He also was active in the 1945 Generation organization, which was a group of politicians and military figures that had participated in the Indonesian National Revolution.

[38] During his time as the rector of the Untag, Sadjarwo was accused of being a communist by Soegiarso Soerojo, the author of the book Siapa Menabur Angin Akan Menuai Badai ("Those Who Sow the Wind Will Reap the Storm").

Ruben Nalenan, a lecturer from Untag, also pointed out several books that alleged Sadjarwo was formerly endorsed by the Communist Party of Indonesia as a minister during the first Ali Sastroamidjojo Cabinet.

[39] Sadjarwo refuted the accusations, and pointed out that during his time with the Peasants Front of Indonesia, the organization was not affiliated with any party.

[34] Three days later, the Staff Intelligence Officer of the district commando, Captain Basiroen S., went to Sadjarwo's university, the Untag.