In this study, the inhibitory effect of Paecilomyces tenuipes extract on PSA and angiogenesis-related factor expression levels were investigated in human prostate cancer cells, LNCaP. P. tenuipes extract significantly inhibited PSA expression in a dose-dependent manner. We also investigated the inhibitory effect of P. tenuipes extract on the expression of angiogenesis-related genes including VEGF, MMP-2, MMP-9, TIMP-1, and TIMP-2. P. tenuipes extract significantly down-regulated the expression of MMP-2 and MMP-9 in a dose-dependent manner. On the contrary, P. tenuipes increased the expression of TIMP-1 and TIMP-2. Our findings indicate that P. tenuipes exhibits an inhibitory effect on angiogenesis in human prostate cancer cells.