Objective To investigate the contamination of aluminum in flour products in Nanning city, to evaluate the status of aluminum exposure of residents, and to provide hasis for hygienic supervision. Methods According to a stratified sampling plan, a total of 101 samples of flour food products were collected froru supermarkets and fairs in Nanning in 2010. Aluminum content was analyzed by national standard methods. The safety of foods exposed hy aluminum was evaluated based on the intake level of flour products adapted from the 2002 dietary nutrition survey conducted in Guangxi . Results The average aluminum content in flour food products was 336. 7 mg/kg. The average exposure of aluminum from flour foods was l. 41 mg per referenc.e man per week in Nanning. The P90 0f aluminum content in flour foods was 977. 1 mg/kg, and the P90 0f aluminum exposure from flour foods was 4. 10 mg per reference man per week in Nanning. Conclusion The