Abstract: According to the current situation of the course system of error theory and data processing, this paper analyzes the problems existing in the traditional teaching process, and introduces the CDIO teaching concept for teaching reform and practice. By changing the traditional teaching mode, optimizing the teaching content, improving the teaching methods and improving the assessment methods, the "learning by doing" teaching mode based on project training is introduced into the teaching and practice of the course in the form of project driven, so as to improve the students' professional skills and professional quality.

Key words: "Error theory and data processing", Teaching reform and practice, CDIO, Project driven