Abstract: In AC/DC hybrid distribution networks, the DC distribution network needs to provide power support due to the weak voltage regulation capability of AC weak distribution network at receving end. The DC distribution network is both affected by itself and the AC distribution network,resulting in large deviation of DC voltage and low inertia characteristics more obvious. In light of this, a DC adaptive voltage control strategy considering soft normally open points（SNOPs） is proposed in this paper.Firstly, the influence principle of voltage disturbance in the AC power grid on the dynamic response and inertia regulation process of DC voltage is analyzed, and the disturbance can be effectively suppressed by designing the voltage feedforward control method.Then, aiming at the problem of insufficient regulation capacity of weak AC distribution networks, an adaptive power compensation control method is introduced, which makes SNOP adaptively compensate power shortage according to the voltage variation at the operation point. Meanwhile, the influence of the power demand on the DC voltage deviation is analyzed. On this basis, for the DC system, an improved adaptive virtual inertia control method is devised by comprehensively considering the DC voltage deviation and the voltage change rate, and the influence of main control parameters on the DC system stability is also discussed, which improves the inertia of the DC system. Finally, a simulation model of AC/DC hybrid distribution network is built in MATLAB/Simulink, and the validity of the control strategy is verified.