Abstract: With the development of social industries and the advancement of smart grids, users have higher requirements for power quality and power supply reliability. Therefore, the uninterrupted loop load transfer of the distribution network is of great significance. Aiming at the demand for non-stop load transfer under extreme conditions, we adopted a dual VSC flexible loop-closing device with flexible control function formed by independent STATCOMs on both sides, and proposed a solution for loop closing adjustment from the AC and DC sides. Firstly, we analyzed the structure and working principle of the loop-closing device. Secondly, the control strategy was determined according to the loop-closing requirements. The dual VSCs in the AC closing loop used feedforward decoupling dual closed loop control and feedforward voltage feedback control and the dual VSCs in the DC closing loop adopted double closed-loop control. After the loop was closed, the control strategy was changed from controlling DC voltage to controlling AC voltage so as to achieve the load transfer. Finally, the 10kV distribution network system using the loop-closing device was simulated in the PSCAD/EMTDC environment and the analysis further verified the feasibility of the proposed loop-closing scheme and the effectiveness of the control strategy. The comparison of the advantages and disadvantages of the two schemes shows that the DC side loop-closing scheme has more advantages.