de amount was 1789.9 million dollars, which was two-third of the amount of the Chinese foreign trade. It was the year that Sino-USSR trade amount took the biggest proportion in the total Chinese foreign trade amount. In 1959, the trade amount reached 2097 million dollars which was the 5.2 times of that in 1950. USSR was the biggest trade partner of China. Her proportion in the foreign trade of China kept at 40%-50percentage except in 1950.Table of sino-USSR trade amount in the 1950s(unit: ten thousand dollars)YearTotal trade amountExportsImportsProportion to Chinese foreign trade (%)1950195119521953195419551956195719581959196033 84480 860 106 142 125 823 129 124 178 985 152 377 136 470 153 857 209 700 166 39415 325 31 12941 20448 06158 66367 02176 16874 69789 887111 79481 87818 51949 73165 21777 76270 461111 6476 20961 77363 97097 90684 51629.8 41.4 54.8 53.1 53.1 56.947.5 44.0 39.847.9 43.7Original sources: Chinese Foreign Economics and Trade Annual What China mainly exported to USSR were agricultural products and by-products like rice, soy bean, tea, meat and vegetable oil; light industrial products; mineral resources and rare metals. What China imported were mainly equipment and military orders. From 1953 to 1957, the proportion of machines imported from USSR to the total Sino-USSR imports was 34%, 33% were machines in sets. To 1959, the proportions respectively rose to 62.2%and 41.9%. China also imported petrologic products like petrol, lubricant and kerosene; raw materials like steal and cotton.2. The Decline in the 60s The Chinese Communist Party and the Soviet Communist Party had diverged in ideology since 1956. Their divergence became bigger and bigger which deteriorated the relation between the two countries, produced direct and serious effects on the development of economic, and trade relations between the two countries. Bilateral trade sharply decreased and economic cooperation enti...