The purpose of the work was to establish the current state of the heteroptera populations and elucidate the changes that have occurred during the last 100 years in the current territory of the “Orhei” National Park. Heteroptera were collected using standard entomological methods. On the territory of the current “Orhei” National Park in the 70-80s of the 20th century, 86 species of heteroptera from 22 families were collected. After our research, 99 species of heteroptera from 22 families were reported on this territory, of which 13 are new for the “Orhei” National Park, and the presence of 66 species is confirmed.