<正>Since 1978 when I started my research on bryophytes,I have had opportunities to visit the important herbaria for bryological researches in the world and to undertake researches at some herbaria,including BM in London,E in Edinburgh,PC in Paris,H in Helsinki,S in Stockholm, MHA in Moscow,LE in Leningrad,KRA in Krakow,BP in Budapest;NY in New York,MO in St. Louis,FH in Cambridge,CANM in Ottawa,ALTA in Edmonton,MICH in Ann Arbor;NICH in Nichinan,HIRO in Hiroshima,TNS in Tokyo,LWG in Lucknow,SING in Singapore etc.I was impressed by rich and valuable collections of bryophyte specimens and literature deposed at the different herbaria.Because of raped development of new and modern technology,especially molecular methods recently,the people pay more and more attention to new technology and molecular analysis.The historical specimens at the herbaria seem not as important for the researches,especially systematic research of bryophytes as before.Some people wonder what roles the historical specimens play in the researches of bryophytes.Based on my research practice and experience for more than 30 years in bryology,I would like to talk of my opinions about the important roles of historical specimens at the herbaria for bryological researches herewith.