This paper attempts to apply the econometrical method of HP filtering and VAR to investigate the impact of dynamic evolutions of China’s three industrial structure between 1979 and 2007 on the short-run fluctuations of national economy from the perspective of three industrial growth rate fluctuation.The empirical research indicates that the secondary industry has not only a significant growth effect on economy,but also a significant lagged fluctuation effect,while the primary industry has a significant effect on the short-run fluctuations of national economy.Besides,the primary industry and the secondary industry have a continuously decreased effect on the economic growth fluctuation,while the tertiary industry has an increased effect.