The purpose of this study is to clarify what type of notes students take using the structural features of their notes as clues. Seventy-four university students got lectured about developmental psychology and took their notes. Those notes were featured via group average method cluster analysis on binary distances from the following 9 aspects. (A) Organization of learning contents: subhead; layout; itemization. (B) Clarification of the emphatic points: colorway; coloring; emphasis. (C) Auxiliary description for comprehension: explanation; sentences; illustration. As a result, we classified the 74 notes into 6 clusters. The results showed university students’ features of note-taking as follows: (1) well-featured notes for an ideal note-taking belonged in the largest cluster, which represents a high standard of university students’ note-taking; (2) the clusters of poorly-featured notes were in the second place, which represents that their note-taking remains at just a record and they need more guidance about note-taking; (3) the rest showed little efforts. On the basis of the result of this study, we discussed the learning support and future directions.