Abstract: The quantitative prediction of rock burst including induced earthquake grade and its location is discussed.Through analyzing the statistical rock burst materials taken place in Huafeng coal mine and Fangshan panel of Daanshan colliery,the burst induced earthquake grade has a linear relationship with logarithm of the burst times.Using the equation the burst induced maximum earthquake grade and the reliability of rock burst can be predicted.Applying material branching analytical method the variation of coal and rock branching areas is studied and the location which may occur rock burst is calculated.