The School of Precision Instruments and Optoelectronic Engineering of Tianjin University is very good and strong, and it is the strongest college in Tianjin University, without one. This college has two national key first-class disciplines. We should know that Tianjin University has only seven national key first-class disciplines. In many 985, 2 1 1 colleges and universities, the number of national key first-class disciplines in the whole school is not more than or even less than that of a college of precision instruments and photoelectric engineering in Tianjin University.