In recent years, with the vigorous development of vocal music art, the status of unified idea in vocal music singing is becoming more and more important. As a result, the road of learning stagnates. In this way, it is very important to establish a correct singing idea and to find a scientific singing method for the future development of vocal music art. The author will analyze how to practice singing under the guidance of "unity" under the guidance of "unity" under the guidance of his theoretical knowledge and some puzzles encountered on the road of vocal music art. Try to inherit and learn relevant theoretical knowledge from the research process, explore and innovate the ways and methods of vocal singing practice.