从日地关系的角度出发，探讨太阳活动对人类流行性疾病的影响。根据云南地区自建国以来的１５种流行性疾病每年人数的资料，对每种疾病人数的相对比率与太阳黑子相对数对应作图比较，并求其相关系数。考察结果为：猩红热、疟疾、炭疽、百日咳、白喉、流感、乙脑、痢疾、麻疹、脊髓灰质炎、姜片虫病、肝炎与太阳活动的关系不明确，伤寒、斑疹伤寒和流脑与太阳活动显著相关 From the perspective of the relationship between Japan and Japan, the paper explores the impact of solar activities on human epidemic diseases. According to the data of the annual number of 15 epidemic diseases in Yunnan since the founding of the People's Republic of China, the relative ratio of the number of each disease and the relative number of sunspots are plotted and compared, and the correlation coefficient is obtained. The findings were: scarce fever, malaria, anthrax, pertussis, diphtheria, flu, JE, dysentery, measles, poliomyelitis, zoonosis, unclear relationship between hepatitis and solar activity, typhoid fever, typhus and meningitis Solar activity is significantly related