Moss flora of Tver Province includes 268 species and 5 varieties of 113 genera and 39 families. The majority of moss species belongs to Sphagnaceae (31 species), Amblystegiaceae (26), Bryaceae (24) and Dicranaceae (23). The paper contains a detailed list of flora referring to localities, types of habitat and ecology of species. The authors examine the character of species distribution on ecological groups and types of habitat.