Voltage Source Converter based Multi-terminal Distribution (VSC-MTDC) is based on flexible-HVDC and multi-stations coordinated control strategy. First, P-Udc/Uac-Q droop strategy and control system architecture are designed. Then, based on LCL high-order primary system model, control system architecture of inner current loop, outer DC-voltage loop and droop loop is proposed, and a design method of optimized control parameter is made. Finally, simulation model of 4-terminal 10 kV VSC-MTDC is built and control parameters are selected. Starting control, steady-state control and critical step response are analyzed. Simulation results show that adopting the proposed control strategy, each converter could achieve droop control of active power flow upon maintaining stability of DC bus voltage. Security and stability of VSC-MTDC is improved and response characteristics are good upon multi transient conditions. This work is supported by National Science and Technology Major Project (No. 2016YFB0901805) and Science and Technology Project of State Grid Corporation of China (No. 524606150161).