Abstract: Through the case sharing teaching practice, taking the teaching of big data analysis for undergraduates majoring in economic statistics in financial and economic colleges as the research object, aiming at the problems existing in the course of big data analysis for the students majoring in economic statistics, this paper expounds the necessity of the teaching reform of this course, and puts forward innovative teaching method of "optimizing content + case analysis + software realization", which is mainly case-sharing teaching and supplemented by theory teaching. Combined with the data of national college students' statistical modeling competition and college students' mathematical modeling competition, this paper constructs a teaching content framework with four modules, and puts forward some opinions on the experimental teaching mode through the case sharing practice of course teaching. Teaching practice has proved that the above teaching methods can stimulate students' autonomous learning, enhance students' interest in learning, and help to cultivate students' big data thinking, innovative thinking ability and knowledge comprehensive application ability.

Key words: Financial colleges, Economic statistics, Big data analytics, Teaching practice, Case sharing, Experiment teaching mode