Studying the specific problems in the class of Auto CAD, which is taught to the students for the Bachelor degree, the psychology of the students is analyzed in details. Psychological tactics is taken actively to reduce the pressure of the students, to arouse their interests, mobilize their enthusiasm, and overcome their Inferiority. Moreover, more attention is paid to setup the conditions and environment in order to make the students work hard to achieve their learning goals. Methods are taken to train the students to collect the information needed, ability to try new things, and have team spirit. After three years experiments, good effect is reached. Hence, conclusion is made that the psychology of the students should be carefully observed and speculated first in the optimization of teaching.