In order to improve the continuous commutation failure suppression and recovery capability of a UHV DC multi-feed system, this paper analyzes the two input methods of AC voltage and DC voltage of Voltage Dependent Current Limit Order (VDCOL) in a DC control system module on the control effects for different system failures. Given the advantages of VDCOL with two different input modes, an improved VDCOL module is proposed. By designing a reasonable input signal conversion control strategy, the module effectively suppresses the continuous commutation failure of a multi-infeed DC system and improves its coordinated recovery speed. Taking the UHV DC multi-feed system of an actual power grid as an example, the simulation results in PSCAD/EMTDC show that the proposed method can effectively reduce the number of consecutive commutation failures and shorten the system failure recovery time of the inverter valve group. This work is supported by National Natural Science Foundation of China (No. 51577075) and Science and Technology Project of State Grid Corporation of China “Application Key Technologies and Demonstration of Electrochemical Energy Storage Power Station Group in UHV AC/DC Hybrid Receiving-end Power Grid”.