The emotional expression can be conveyed in place or not, which is a decisive step on the quality of vocal work. A comprehensive understanding of the work, the skillful technique on vocal music and the excellent state of mind can better help the emotional expression. If the singer wants to find a better way to convey the nature of the work, he has to analyze the work and deal with the song carefully. This paper expounds the three aspects: analysis of the work, emotional expression and psychology of singing.