Studying the content and characteristics of soil nutrients and the bryophytes community is crucial to revealing the soil nutrition conditions and the effect of bryophytes on soil nutrient accumulation. In our study we selected Laoheishan,Huoshaoshan,Xijiaodebushan,Wohushan,Nangelaqiushan and Molaushan volcanoes as sampling plots. Laoheishan and Huoshaoshan are new-period volcanoes and the rest are old volcanoes. We arranged 15 quadrats to investigate the habitatdistribution and coverage of bryophytes; and t...