Object  To study the chemical constituents in the mycelia of Hypomyces sp     Methods  The mycelia were extracted with acetone and the chemical constituents of the extract were isolated and purified on silica gel column   Chemical and spectral methods were used to determine the structures of the isolated compounds   Results  Five compounds were obtained and identified as: hypocrellin A (Ⅰ),hypocrellin C (Ⅱ), elsinochrome C (Ⅲ), 1  phenazinecarboxylic acid (Ⅳ), and 1,8  dihydroxy  9,10  anthraquinone (Ⅴ)   Conclusion  Compounds Ⅱ~Ⅴ were obtained from the mycelia of Hypomyces sp   for the first time