The party was established in November 1943 on the basis of the individual communist groups that had been active in Morocco since 1920.

[2] The first congress of the Moroccan Communist Party, held in April 1946 issued an appeal to the people of Morocco to join forces in the struggle for independence, for democratic freedoms and improving the situation of the workers.

In the manifesto "For the unification and independence of Morocco", issued in August 1946, the party the need to create a united national front.

Communists actively participated in armed struggles against the French colonial authorities in the period 1953–1956.

Until the party was banned in 1964, it released a daily newspaper Al-Mukafih, and a weekly, Hayat ech Chaab, from 1945 to 1956.