Abstract: A large amount of Citrus peels are generated with citrus processing ,which leads to severe envi‐ronmental pollution and ,therefore ,is an urgent problem to be solved .In this study ,several strains of high‐temperature‐resistant bacteria were isolated from compost and cultured with CMC and pectin as car‐bon sources .After a primary screening with Congo red staining ,two strains ,L207 and L702 ,were select‐ed .Cellulase activity and pectinase activity of these two strains were remarkably higher than those of the control ,Bacillus subtilis strain L5 (p=0.05) ,indicating that they were endowed with an excellent capa‐bility of citrus peel degradation .In our preliminary study for their fermentation conditions ,the optimum conditions of L207 for enzyme production were:initial inoculum concentration 4% (V/V) ,fermentation temperature 40 ℃ ,pH value 6.0 ,and fermentation time 48 h (with the best resulting pectinase activity) or 60 h (with the best resulting cellulase activity);the optimum conditions of L702 for enzyme production were:initial inoculum concentration 6% (V/V) ,fermentation temperature 40 ℃ ,pH value 6.0 ,and fer‐mentation time 36 h (with the best resulting pectinase activity) or 72 h (with the best resulting cellulase activity) .Hence these two strains are of potential development value in the processing of citrus peels .