Objective　To investigate the relationship between the parietal tuberosity of skull and the corresponding structures inside tuberosity.    Methods  32 embalmed brains were observed to identify the location of the parietal tuberosity and the lateral protuberance the parietal lobe; vernier caliper and rule were used to measure the length between the left and right parietal tuberosities, and the left and right protuberances of the parietal lobes, respectively. the obtained data were then used for correlated analysis between the tuberosity and the protuberance. Results   There is a constant lateral protuberance in the parietal lobe, which was composed of  the supramarginal gyrus and its surrounding gyrus. The presence of the parietal tuberosity and the lateral protuberance of the parietal lobe was correlated.（r=0.639,P<0.05）. Conclusions  A protuberance can be found on the lateral surface of parietal lobe of the cerebral hemisphere,deep to the parietal tuberosity.