The present study is foculazid on the contribution to diversity of spiders in Kasugho region, with the aim of to enumerate spiders find in the kasugho environement according to the habitat.To get data we used the view hunting.The identification was carried out using a monocular magnifying glass and identification key books. To analyse our resultats, we calculated the Shannon diversity indice, the Simpson indice, the Jaccard similarity, the equitability.The ANOVA test was used to compare data of the differents site of harvest.769 specimens of spiders was captured.They are regroup in 30 families and 59 species.The most abundant families are Lycosidae (56,6), follow by Araneidae (16,5%), Ctenidae (0, O4%°) and Tetragnatidae (0,06).The most diversified family is Araneidae (6 genera with 12 species).The fallow abound the largest number of species, (55,9%) but less diversified than the secondary forest, the banana plantation is the least diversified.The species similarity of species harvested in the old fallow and the secondary forest is 12,1%, 13,1% between the old follaw and banana plantation, 13,4% between secondary forest and banana plantation. In view of the above, it was found a very great dissimilarity between the different habitats.