Based on the strongly nonlinear and coupled characteristics of multi-infeed DC（MIDC） systems， this paper analyses the urgent requirements for the practical applications of coordinated control methods in real systems. From the perspective of linear/nonlinear control theories and centralized/decentralized control structures， the development process and the current research situation of the coordinated control technologies in MIDC systems are reviewed. First， application results of various coordinated control methods， such as classical linear control， nonlinear control， optimized control， robust control， adaptive control in MIDC systems， are discussed. Then， in view of the existing engineering application problems with the centralized coordinated control methods in MIDC systems that need remote and unmeasurable variables as feedbacks， this paper presents the research results of decentralized coordinated control methods in MIDC systems， which integrates the decentralized model theory with the correlative measured vectors， distributed closed-loop feedback and WAMS signals feedback methods. Finally， the problems and further research directions of the coordinated control methods in MIDC systems are also discussed.