The DC voltage droop control strategy is often used for the voltage source converter based muIti-terminal HVDC which power flow is changed frequently.But the existing DC voltage droop control can not meet the requirements of different operating conditions on the droop parameters.This paper presents a DC voltage droop control strategy based on fuzzy control.By using the fuzzy control theory,the conventional DC voltage droop control strategy is converted to the variable droop control which is changed according to operating conditions.Finally,a four terminal VSC-HVDC is built and simulated in PSCAD/EMTDC which is connected with Matlab.The simulation results demonstrate that the DC voltage fuzzy control strategy can maintain the stability of the system and accelerate system s recovery speed effectively.