The present work was conducted to survey and study the seasonal abundance of different leafhopper and planthopper insects infesting some leguminous plants (broad bean ,pea ,cowpea and bean plants)as well as their varieties  in Diarb–Nigm district, Sharkia Governorate ,Egypt during 2014/15 and 2015/16 seasons. The  collected insect pests by using sweep net from leguminous plants were the leafhopper  and planthopper insects specially, Empoasca  decipiens (Paoli), Empoasca  decedens (Paoli) , Cicadulina  chinai (Ghaui), , Balclutha hortensis,(Lindb.),Nephotettix apicalis (Matsch) and  planthoppers, Sogatelle  vibix (Haupt) and S. furcifera (Horv.) . High population abundance  for  E. decipiens occurred on broad bean and pea plants during the fourth week of Febrauary.While in case of cowpea and bean plants two peaks of abundance  were recorded at the second week of July and the second week of August, respectively. On the other hand, E.decedens had one peak of abundance at the second week of March for broad bean and pea plants. On cowpea and bean plants two peaks were also recorded at the second week of July and the second week of August, during the two successive seasons, respectively.Varieties such as broad bean, pea, cowpea and bean plants influenced the population density of leafhoppers, Cream7 cowpea, Bronco bean, Master B pea and Improved Giza 3 broad bean varieties showed lowest mean number of insects/sample. Chemical analysis results showed a positive relationship between protein & carbohydrate contents and the average number of the leafhopper insects on all tested leguminous plant varieties ,while a reverse relationship between pH values &leafhopper insect and also with quantity of yield was also shown.