Large amount of montan resin is generated as by-product during production of refined montan wax from montan wax and cannot recycle. In order to elucidate material basis for realizing ecological utilization, fourteen compounds were isolated from the montan resin of Yunnan Esan (China) by modern chemical separation methods, and their structures were elucidated by spectroscopic methods. They were identified as 31-homohopanoic acid (1), bacteriohopanetetrol (2), stigmasterol (3), 24,25- dinoroleana-1,3,5-triene-19,28-epoxy (4), bis-(7-methyl-nonane) phthalate (5), terephthalic acid-cyclic ethylene ester (6), 3,4-quinoxaline (7), 2-hydroxy-carboxyl- phthalic acidoctyl ester (8), dacane cyclohexane (9), methyl dodecyl (10), methyl heptyal (11), hendecane (12), decane (13), octane (14). Those fourteen compounds were isolated from montan resin for the first time.