Targeted at cultivating the innovation ability of graduate students, core courses reform and practice for engineering graduates were conducted based on the idea of promoting research with learning. Multiple teaching mode, such as bilingual teaching, case-study teaching, rain class, classic literature reading experience sharing, has effectively stimulated students' interest in learning and increased their participation. The establishment and implementation of flexible course projects is an important part of the curriculum reform, and implementation details of the course projects and related grading policy are presented. Feedback from students based on anonymous questionnaire indicates that the teaching reform measures of this course have been well received by students.