“前疑古时代”是指从戊戌维新到五四新文化运动这段时间内的中国学术发展的一个阶段，这个时代学术的新的发展变化为“疑古时代”的出现做了先期准备，其表现为：首先，中国学术逐步走出传统经学的老路，并逐渐打破对孔孟之道的迷信；其次，以科学精神为指导的学术和对于古史认识的新理论渐趋成熟；复次，地下考古资料在这个时期集中涌现，极大地扩展了学术界的理论视野。到了２０世纪２０年代，学术研究的发展已经到了非大变不可的地步，无论从研究方法上，抑或是从研究资料的准备上，都为疑古时代的来临创造了充足的条件 “Pre-doubting ancient times” refers to a period of academic development in China during the period from the reform of 1898 to the May Fourth New Culture Movement. The new development of the academic era made preparations for the appearance of “the ancient times” Firstly, Chinese scholars gradually walk out of the old school of traditional Confucian classics and gradually break the superstition of Confucius and Mencius. Secondly, the academic and scientific theories guided by the spirit of science are gradually maturing with new theories of ancient history. The second, underground archeological materials Concentrated in this period, greatly expanded the theoretical horizon of academia. By the 1920s, the development of academic research had reached a point of no significant change. Both the methods of research and the preparation of research materials have created sufficient conditions for the advent of the ancient times