A survey on parasitic and predatory insects was conducted from June 2008 to June 2010 a Pu Huong nature reserve. Five areas were used: Nam Co stream, Huoi Nay stream, Bo stream, Ban Tang stream and Khe Khai. 17 species of insect parasitoids (15 species belong to Hymenoptera, 2 species belong to Diptera) and 88 species insect predators belong to 7 orders. This is the first tim that they were reported from this area. Among the species identified, one specie was listed in the Red Data Book of Vietnam in 2000.