Current book is collective information about insect pests of some cucurbits which are major constraints in increasing production. For better management practice against insect-pests study on population fluctuation, incidence pattern and host preference of insect pests is very important. Considering the above mentioned prospects as field for research works, the study on insect-pests problems of pests like Melon fruit fly, Epilachna beetle and Red pumpkin beetle on some cucurbits were studied by the author and all results with explanation are presented here.