In order to identify thylenchs species (Superfamily Tylenchoidea and suborder Aphelenchina) in Kerman province, 150 soil and root samples were collected from Kerman province during 2004 and 2005. The samples were washed and the nematodes extracted by centrifugal floatation technique. They were then fixed and transfered to glycerin according to the De Grisse method (1969). The permanent microscopic slides were prepared from the extracted nematodes. Morphological and morphometrical characters of the species were studied by light microscopy. As a resalt, 21 species belonging to several genera Tylenchoidea, three species of Aphelenchides and one species of STICTYLUS were identified. Among them, Cephalenchus lobus Dhanachand & Jairajpuri, 1980, Coslenchus areolatus (Egunjobi, 1967) Siddiqi, 1978 and Rotylenchus eximius Siddiqi, 1964 are new records for Iran.