The effective management of insect pests requires decisions based on monitoring information. In this study, we aimed to monitor insect species diversity and monthly occurrence patterns on the golf course using light traps. Sampling was conducted at Anyang Country Club, Korea, from May to October 2023. A total of 5,149 individuals were collected, with Lepidoptera and Coleoptera being the most abundant orders. Among them, there were six species (Agrotis ipsilon, Blitopertha orientalis, Heptophylla picea, Maladera orientalis, Parapediasia teterrella, and Spodoptera depravata) of insect pests that caused serious damage to the turfgrass. The results of this study could be used as data to establish efficient management strategies for turfgrass insect pests.