Abstract: Incidence of predaceous mite species inhabiting different habitats were recorded in Saudi Arabia for the first time in 2008-2009. Predatory mites were mounted, classified and identified in Zoology Lab at the College of Agriculture and Veterinary Medicine, Qassim University. Thirty one predaceous mites were collected from samples of plant shoot and root systems of cultivated plants, debris and organic manure in Al-Qassim region. These mite species belong to three suborders, 16 families and 29 genera. Acarid mites represented 6.46%, Actendid mites represented 25.8%, while Gamasid mites, which was the most abundant group of predaceous mites, represented 67.74% of the whole collected species during the study. Occurrence, site of collection, habitat and remarks of predatory mites are listed. The surveyed mite species are considered new records for the Saudi fauna. Illustration and description of the two new laelapid species, Hypoaspis zaheri; H. dactylifera are included.