According to the previous studies of professional education and teaching practice for freshmen, based on numerous detailed questionnaire investigation data, the social understanding, cognition, and shortages of the original major renamed by “building environment and service engineering” as a new major were discussed. The necessity, appropriate, and prospective of the new professional secondly renamed by “building environment and energy application” were obtained. More attentions should be paid on the source of students to cope with energy and environment challenges and to train the registered service engineers.