Hymenoptera is one of the key orders within Insecta. They number around 153.000 descri-bed species [3]. All of the species known so far, differ a lot in their ecological niches and nu-tritional preferences. They play different roles in nature, thus, ranging from pollinators (bees), parasitoids (parasitoid wasps) to serious agricultural pests (sawflies). Plum is one of the most important stone fruit cultures in the Republic of Moldova. It is widely used in many food industry’ branches. The plum is often attacked by a number of pests that produce serious damage in both fruit quality and quantity. The presence, significant rich-ness and abundance of the parasitoid Hymenoptera can considerably improve natural control of the pests in a plum orchard. The purpose of this work was to research the Hymenoptera complex in a plum orchard – its faunistic composition and nutritional properties for better understanding of their role in a plum orchards’ ecosystem.