Hurvitz was born in Nahlat Yehuda (today part of Rishon LeZion) in 1918. Between 1938 and 1941 he was a member of the secretariat of HaNoar HaOved VeHaLomed, and served in the Jewish Brigade during World War II. In 1961 he joined Mapai and became a member of the party's central committee. He also served as a member of the Moshavim Movement's secretariat between 1961 and 1965.
After being placed third on Telem's list, he lost his seat in the 1981 elections when the party won only two seats. However, following Dayan's death in October 1981, Hurvitz re-entered the Knesset as his replacement. In June 1983 he left Telem and re-formed Rafi – National List. Shortly before the 1984 elections he renamed it Ometz (lit. Courage).