According to the implementation time of the first five-year plan and the second five-year plan, China's third five-year plan should have been implemented in 1963- 1967. However, due to the uneven development of the national economy during the second five-year plan period, in order to make the third five-year plan start from a better starting point, it is decided to take 1963- 1965 as the continuous adjustment year.

Extended data:

The main planning objectives during the "Third Five-Year Plan" period are: by 1970, the grain output will be 430-460 billion Jin, cotton 38.5-42 million tons, steel 1600- 1800 tons and coal 285-295 million tons; The accumulated total capital investment in five years is 654.38+000 billion yuan.

This plan has summed up the past experience and lessons, focused on solving the problem of "food, clothing, housing and transportation" in people's lives, and the indicators are relatively realistic. But the main problems are: the accumulation is too high, the consumption fund is reduced, which affects people's lives; Concentrate on the development of heavy industries such as steel, so that the proportional relationship is unbalanced and the economic benefits are reduced; The construction of the third line (inland) is too fast, causing a lot of waste and sequelae.