Higher vocational institutions should focus on students' whole development and strengthen humanistic education in the current environment of higher education reform and development in order to meet the needs of social and economic development. In the context of the information age, there is also an urgent need to use digital technology to carry out more in-depth changes in teaching strategies. This paper starts from the development of humanistic education in higher vocational education, studies the content of humanistic education and the characteristics of teaching strategies, and analyzes the classroom environment and strategy design of digital smart teaching based on digital technology. Using the Analytic Hierarchy Process (AHP) to determine the weight of each factor, a multi-level fuzzy comprehensive evaluation model is constructed, which makes the comprehensive evaluation of teaching more objective. The research showed that teachers' demands for the improvement of digital intelligent classrooms accounted for the largest proportion of the improvement of the situation diagnosis and student data analysis systems in the middle school, as high as 83%. This appeal is conducive to improving digital teaching strategies. Second, after adopting the digital-based interactive teaching strategy, the proportion of teacher-led classrooms decreased from 34% to 27%, the proportion of student-led classrooms increased from 16% to 25%, and the proportion of classrooms in which students evaluated each other from 14% increased to 22%. This finding demonstrated that in digital teaching, teachers give students' initiative more and more consideration, increase interactive learning in the classroom, and permit more students to actively participate in class activities. Students' enthusiasm for learning and the number of classroom interactions have been improved.