My thesis has three parts : in part 1 , i briefly introduce the background of the selected title , the goal of research and research meaning of this text . i mainly study the concept , the theory putted forward by the economists about the reason causing economic fluctuation and the macroeconomic control to economic fluctuations . in part 2 , i regard chinese economic cycle as the observing object , using the traditional method and economic mathematical model to measure and analyze chinese economic cycle systematically since the reform , then i study the nature , characteristic and main influencing factor of chinese economic fluctuations since the reform of 20 years 本文的研究工作主要由三部分內容組成:第一部分首先簡要介紹了本文的選題背景、研究的目標和研究意義,然后重點考察了經濟周期的概念、各國經濟學家解釋經濟周期發(fā)生原因的一般理論以及經濟周期波動的宏觀調控等內容;第二部分主要以改革開放以來中國經濟周期波動為研究對象,運用傳統(tǒng)方法和經濟數(shù)學模型對這一時期中國經濟的周期波動進行了詳細、系統(tǒng)地測定,并考察了改革以來中國經濟周期波動的性質、特征以及主要影響因素;第三部分重點分析了中國經濟波動的真正原因及其傳遞機制,并在前文研究的基礎上,依據(jù)“反周期”理論探討了對中國經濟周期波動進行調節(jié)的基本思路和對策。