Abstract: Based on the 2022 Yunnan provincial professional graduate course case library construction project "Construction of the teaching case library for signal courses in electronic information programs for professional master's students in Applied Universities", this study reflects and summarizes the construction work around the teaching content of "Modern Signal Processing Technology" course
for the classroom teaching and training of professional master's students in Dali University. Some suggestions are put forward from
several aspects, such as the role of case library construction, the basic principles of construction, the purpose of case teaching, key
knowledge points, the formation of the construction team and the development ideas of the teaching case library, for the reference of
relevant researchers and scholars.

Key words: professional master's students, signal courses, teaching case library, construction