This study analyzed the influence of the design of integrated curriculum of civil engineering majors and the change of completion semester of subjects on the quality of students' knowledge system and graduation projects according to the concept of CDIO engineering education based on conceiving, designing, implementing and operating. Through this the integrated curriculum plan of architectural courses was reviewed to improve the quality of graduation project and students' practical abilities. This study was conducted on graduates from 2017-2020 of the university to which the author belongs. This research figures out that the integrated curriculum plan of architectural courses can effectively improve students' comprehensive mastery of architectural knowledge. Furthermore, although the teaching team has a clear understanding of the coherence among architectural courses from the perspective of "teaching", the students still do not have a clear understanding of the coherence among the courses from the perspective of "receiving". They stayed in mastering the contents of each course and failed to meet the "integrated learning experiences" required by CDIO.