Objective  To observe the characteristics of photopic ultraviolet-sensitive cone electroretinograms （UV-cone ERGs） in C57BL/6J mice. Methods  This was an experimental study. Ten adult wild-type C57BL/6J mice （10 eyes） were divided into 2 groups of 5 each. Photopic ERGs were elicited after 10 minutes of adaptation under a steady white background illumination of 30 cd·m^-2. Mice in the experimental group displayed UV-cone ERGs elicited by UV flashes （λ=363 nm） with stimulus intensities of 0.03 mW·s·m^-2， 0.30 mW·s·m^-2，1.00 mW·s·m^-2 and 3.00 mW·s·m^-2. Mice in the control group displayed white flash ERGs （stimulus intensities ranged from 0.02 to 10.00 cd·s·m^-2）. The maximum responses of the a- and b-wave amplitudes of the 2 groups were compared. An independent samples t test was used for statistical analysis. Results  As UV intensity increased to 0.30 mW·s·m^-2， the UV-cone ERG could be elicited with an amplitude of 14.8±3.0 μV. At an intensity of 1.00 mW·s·m^-2 or 3.00 mW·s·m^-2， oscillatory potentials （OPs） with a sizeable O_1-3 were recorded on the b-wave. But there were no obvious OPs in the control group. The maximum response showed that the b-wave amplitude of the experimental group was significantly higher than that of the control group （t=2.615， P＜0.05）， although there was no statistically significant difference in a-waves （t=-1.633， P＞0.05）. Conclusion  In adult C57BL/6J mice， the difference between photopic UV and white flash ERGs involve wave shape and maximum amplitude. Our results provide normal reference values for UV-cone ERGs in mice.