Abstract: That the modern scientism of music thought in China was inchoation during the end of Qing Dynasity and early of Republic of China, group up in the perod of May 4^th new Chinese cultural movement. The modern scientismof music thought was close to study the West music thought., the cultural result was to rebuild the old Chinese music with the West music theory, to create the Chinese new music. During the period the War of Resistance Against Japan, it continued the modern scientism of music thought and meanwhile triggered the first profound consideration on itself. The modern scientism of music thought in China promoted the development of the new Chinese cultural movement, which made the music a status as individual subject in China in the modern times, on the other hand, it also had some negative effect on lose the spirit of science and take the European music as the center spreading in China.

Key Words: modern times, science, Natural Science, scientism, music thought