The subfamily Cetoniinae is one of the 19 subfamilies belonging to the family Scarabaeidae, and distributed in most regions, except for Chile and Newzealand. Phia Oac-Phia Den National Park located in Cao Bang Province has been estabshied since 2018, with a total area of 10,593.5 ha, and is considered as one of the biodiversity hotspots in Vietnam. This study provides a list of 23 species belonging to 15 genera of the subfamily from Phia Oac-Phia Den National Park. Of which, eight genera (Bombodes, Cosmiomorpha, Dasyvalgus, Dicronocephalus, Glycyphana, Macronota, Pseudotorynorrhia, Taeniodera) and eleven species (Cosmiomorpha (Microcosmiomorpha) tonkinensis Moser, 1903; Dasyvalgus (Dasyvalgus) carbonarius Arrow, 1910; Dicronocephalus wallichii (Hope, 1831); Glycyphana (Glycyphana) aurocincta Arrow, 1910; Glycyphana (Glycyphaniola) gracilipes Moser, 1914; Glycyphana (Glycyphaniola) nepalensis Kraatz, 1894; Macronota shangaicus (Neervoort Van De Poll, 1886); Paratrichius hajeki Krajcik, 2010; Pseudotorynorrhina fortunei (Saunders, 1852); Taeniodera nigricollis (Janson, 1881); Taeniodera zebraea Fairmaire, 1893) are recorded for the first time from this National P