Abstract: An extensive survey was carried out for collection and documentation of ethno medicinal plants used to cure different Kinds of fevers by the tribal people of Sonbhadra district of Uttar Pradesh; India. In this study fourteen plant species namely, Andrographis paniculata , Azadirechta indica, Clerodendrum serrate, Carica papaya, Dalbergia sissoo, Fumaria parviflora, Holarrhena, antidysentirica, Moringa oliefera, Nyctanthes arbortristis Oscimum basilium , Swertia, Chirata, Tinospora cordifolia, Vitex, nigundo and Vernonia, cinerea belonging to thirteen families which are being used for fever treatment by the tribal people of Sonbhadra have been recorded. In this investigation it has been found that Tinospora cordifolia have highest use value ( 0.85) and on the other hand Vitex nigundo have lowest use value (0.18). These plants species were enumerated alphabetically with their botanical name, common name in Hindi, habitat, parts used, use value, ethno medicinal uses in a tabulated form.