Naraichi Takemura became active in the agrarian movement when he was appointed a clerk in the All Japan Agrarian Union of Nara Prefecture (1929). Later led a tenants' movement and as a result was sentenced to imprisonment (1932).
After World War II became a member of Communist Party and was elected chairman of All Japan Agrarian Union also of Village Agrarian Association and Livestock Breeders Association. He was elected to the Diet from Nara Prefecture as an independent. Later appointed head clerk of Federated Agrarian Union, but left the Communist Party due to differences over future policy of the agrarian movements.