Aiming at the problem of Suzhou dam hydropower station access to Youxiang county grid, three access schemes are proposed. The first scheme, newly built Suzhou dam hydropower station is accessed to Sutang 35 kV substation; the second scheme, newly built Suzhou dam hydropower station is accessed to Gezitang 35 kV substation; the third scheme, newly built Suzhou dam hydropower station is T type connection to the two substations; By flow calculation, a more appropriate scheme is chosen and then the stability is analyzed. The data analysis results show that compared with the other two schemes, the first scheme has best stability and higher economic efficiency.