The Long March 1 (长征一号), also known as the Changzheng-1 (CZ-1),[3] was the first member of China's Long March rocket family.

[5] Development started in January 1965 as the Seventh Ministry of Machinery Industry issued a design task.

The two stage liquid fueled DF-4 was modified by adding a third stage in order to make it to the desired orbit.

Long March 1's second flight launched China's first satellite Dong Fang Hong 1 to space on 24 April 1970.

Wang Xiji was the chief designer of the rocket.