Western orchestral instruments in colleges and universities, as important instruments, occupy a central place in many bachelor’s degree programs in music education. Music teaching reform and innovation are central to the creative wisdom of music teachers, their musical upbringing, and the lived experience of their students. For teachers, the process of pedagogical reform and innovation is the process by which teachers realize their own pedagogical ideals. Teachers must first be motivated; in the absence of motivation, any advanced teaching methods will become pale in comparison and lose their value and usefulness. Therefore, the construction of teaching activities requires teachers to take responsibility for the education and support of students, to align their teaching goals with the development of each student, to make the students’ feelings closely connected to them, and to make them feel their value in the learning process. Starting from teaching western orchestral instrument ensembles in colleges and universities, this thesis uses the research method of improving RRT’s moving path planning algorithm to explain and analyze some problems that arise in teaching western orchestral instrument ensembles in colleges and universities and puts forward constructive suggestions and recommendations.