The cowpea(Vigna sinensis K.),also known as black-eyed pea,southern pea,and crowder pea,is one of the most important annual legume crops and a good source of protein,carbohydrate and other nutrients.Angiogenesis,a process leading to development of new blood vessels from pre-existing vessels,plays essential roles in embryonic development,wound healing,inflammation and tumor growth.Angiogenesis is critical in the development and dissemination of most human tumors.