1949- 1957 is the stage of new democratic society. At this stage, 1949- 1952 is the period of national economic recovery, and 1953- 1956 is the three major transition periods (the establishment of the socialist system). 2. 1958- 1962 is the first half of the ten-year exploration period (that is, the period of building socialism in an all-round way). From the correct decision of the Eighth National Congress, to the expansion of the 1957 struggle against "Right" and the promulgation of the 1958 general line of building socialism in an all-round way, the Communist Party of China (CPC) has always been "Left" in the economic field. "People's Communalization Movement") brought serious losses to the national economy, followed by a three-year difficult period of China 1959- 196 1 year. However, from 1960-1962, the Communist Party of China (CPC) adopted a series of measures to correct the "Left" (such as "60 agricultural articles" in agricultural work, promulgated the eight-character policy of "adjusting, consolidating, enriching and improving" and held the "7,000-person conference"), and the national economy changed from1. 3, 1963- 1965 is a period when the national economy is advancing in twists and turns, and the construction of material civilization and spiritual civilization in China has developed. 4, 1966- 1976 is the decade of the Cultural Revolution. During this period, class struggle was serious, left-leaning errors within the party were rampant, the economy was severely damaged, and the society was in turmoil. However, with the efforts of the broad masses of cadres and the masses, the national economy also developed. During the period of 5 1976-2000, 1976- 1978 was the two years when the national economy lingered forward. After the Third Plenary Session of the Eleventh Central Committee, China entered a new period of socialist development. During this period, the spring breeze of reform and opening up spread all over China, the planned economy system was transformed into a market economy system, and China's work center was transferred to economic construction, and socialism flourished.