According to the usual view, the road to success of German universities in the19th century began with Humboldt. Humboldt not only established the University of Berlin, but also laid the spirit of the University of Berlin, thus opening a glorious century for German universities. In other words, Humboldt's university idea dominated German universities in the19th century, and the so-called traditional German university idea was also Humboldt's university idea. But the problem is that the so-called well-known principles of German universities, such as the unity of teaching and research, freedom of teaching, freedom of learning and so on. It seems that Humboldt didn't write it. Looking through Humboldt's exposition on universities, we can't find such a statement at all. Obviously, these famous principles are a summary or explanation of Humboldt's university ideas by later generations, and they are regarded as Humboldt's university ideas. Since it is the explanation of later generations, it may be different from Humboldt's own thought. In other words, there may be two kinds of Humboldt's university ideas, one is Humboldt's own, and the other is Humboldt's university idea that later generations think. Let's first look at Humboldt's own exposition of university, and then discuss Humboldt's two university ideas. 1. Humboldt said that William von Humboldt (1767- 1835) served as the Prussian education director for more than a year during the Prussian reform in the early19th century. During his short term, he contributed to the establishment of Berlin University, thus opening a new period in the history of German universities. Humboldt in the reform at the same time, especially so (this article * * * 3 pages).