The combination of traditional music cultural elements and modern music teaching has become an inevitable trend in the field of music teaching. This study explores its integration in modern computer-based Bel Canto teaching, constructs an evaluation system for the integration of traditional music cultural elements and modern computer-based Bel Canto teaching, and empowers it with the entropy value method. The coupled coordination model is introduced to quantify the integration of traditional music culture elements in modern informational Bel Canto teaching, and an integration measurement model is constructed. Take Shandong Province as an example to conduct empirical research. By quantifying the coupling coordination between traditional music and cultural elements and modern informationized Bel canto teaching in 16 cities in Shandong Province from 2018 to 2023, the current status of the integration of Bel canto teaching in Shandong Province is explored, and teaching strategies are proposed.