Cadmium content in rice sample was determined by graphite furnace atomic absorption spectrometry and rapid detection of heavy metals method. The results showed that the cadmium content in rice were 0. 2878 mg/kg and 0. 2886 mg/kg, while relative error were 3. 55% and 3. 28%, relative standard deviation were 10.71% and 0. 48% respectively. There were no significant differences between the results of the two methods(P >0. 05), but the precision of rapid detection of heavy metals method was better than that of graphite furnace atomic absorption spectrometry, and can be used in rapid screening and accurate quantitative determination at the same time, which will have a good application prospect in detection of heavy metals in grain.