In this paper we selected 33 earthquakes with magnitude M_S ≥ 5.0 between 1947 and 2019 in Qinghai Province. After regression analysis and comparison analysis with other related research results on the intensity of the western intensity attenuation,seismic disaster assessment system software and seismic intensity distribution data,we proposed a seismic intensity attenuation relationship model suitable for the characteristics of Qinghai Province. After the regression,the range of seismic attenuation relationship in Qinghai Province was 5.0 ≤ M_S ≤ 8.0,and the epicenter range was 0 ≤ R ≤ 250km.