In order to solve the problem of dynamic instability of power system, here proposed the HVDC setting value control strategy of Hopf bifurcation Jacobi sensitivity for DC power system. Firstly, the 2 and 3 sections of power system are constructed by using IEEE14 bus system and HVDC rectifier, and the algebraic equation model of the system is given; Secondly, here take the Jacobian sensitivity calculation for 2-segment and 3-segment power system model, and based on this take HVDC line adjustment strategy, then linear search to determine the optimal control parameters for DC power system steady state sectional control; Finally, simulation results show that the optimal operating points obtained by the proposed algorithm can effectively improve the stability margin of the Hopf bifurcation and the damping ratio of the damped oscillation modes, and also can greatly improve the steady-state control speed.