Scriabin is one of the composers who devoted themselves to the piano music the most in the end of the nineteenth century, the Romantic period. He was also one of the few composers to bridge the gap between conventional tonality and atonality. Scriabin continually explored the new means of music expression, in which he both maintained the composing way of the late period of the Romanism but demonstrated his own individuality. As he matured, however, he came increasingly under the influence of diverse aesthetic, philosophical, and mystical doctrines that impelled him toward an artistic vision of unprecedented grandiosity. This paper will generalize and discover Scriabin's peculiar composing method and the characteristics of musical language in his piano music.