Compared with the early diagnosis rate and the mortality rate between the patients of nasopharyngeal carcinoma (NPC) from the screening group and the control group, new screening protocol is conducted into high-risk population in Guangdong Province, China. Meanwhile, we also perform epidemiological surveys of the screening population to acquire the baseline information. Through analyzing the risk factors, this study can provide a population-based prospective evidences to better understand the reasons of NPC onset in high-risk population.