魏源从历史上兵制、赋役、刑罚、科举等制度的沿革中 ,认识到后世胜前世的历史进步现象 ,具有进化论历史观。从公羊三世说中 ,魏源引申出太古、中古、末世三世说 ,在映证历史是不断变化的同时 ,特别看重历史中“一治一乱”之循环、一“文”一“质”之反复 ,具有循环论历史观。在他看来 ,他所处的时代是末世 ,是“文”胜“质”衰的末世 ,故应采取对策 ,化繁就简 ,“去奢去甚去泰”,由“文”返“质”,达到天下大治的升平盛世。魏源之循环论显然是为改革时弊、挽救时局服务的 ,现实意义大于学理探讨 Wei Yuan has historically realized the historical progress of the succeeding generations of the past generations and has the historical view of evolution from his historical evolution in the system of making troops, giving labor, penalties and imperial examination. From Ramsan III’s remark, Wei Yuan derives from the Pacific, Middle and Late Third Says that while mapping history is constantly changing, it pays special attention to the cycle of “rule by law and disorder” in history, and the “text” and “quality” Repeated, with a cycle of historical view. In his view, the era in which he lives is the end of the world and the end of the passage of “wen”, which means “wen” and “wen” ", Reached the world peace and prosperity. It is obvious that the circulation theory of Wei Yuanzhi is for the purpose of reforming the malpractices and saving the current situation,