With content analysis as the method and effective instruction as the key word, searched through CNKI, CDFD and CMFD data base，the study was carried out mainly through analyzing the number of articles and content in the field. The search results show that the number of articles increased year by year. The definition, influential factors, strategies and standards are the four key issues in researches on effective instruction. With these as the bases, this article pointed out the tendency of the concerned researches in the course of the new round of curriculum reform.