Abstract: The nature of world is nonlinear. Only in certain areas or special circumstances, the world may be regarded as linear approximately. Science and engineering discipline are also non-linear thinking, but the mathematical and experimental nature of sciences and engineering discipline decides in certain degree that the people should be learning too much reliance on linear thinking in the study of the science and engineering discipline professional knowledge. It is the reason that many science and engineering universities had formed linear thinking-oriented education model. Limited to linear thinking, there have been aggravate conflicts between humanities education and professional education in today’s quality education in science and engineering universities. These conflicts restricted seriously effect promotion of quality education in sciences and engineering universities. Therefore, the change from linear thinking to nonlinear thinking is a key to improve quality education in science and engineering universities at present.