In Jiangsu power grid，the simultaneous commutation failure of multiple DCs will seriously threaten the stable operation of the power grid. A coordinated control strategy for commutation failure recovery of multi-infeed DC systems with hybrid cascade DC system is proposed. Firstly，by analyzing the limitations of multi-infeed effective short circuit ratio （MIESCR），the multi-infeed operating short circuit ratio （MIOSCR） is proposed，and the recovery sequence coordination principles that should be followed for the commutation failure recovery in multi-infeed DC systems is summarized. Then，based on MIOSCR，a two-stage coordination control strategy for the commutation failure recovery of multi-infeed DC systems with hybrid cascade DC system is proposed to reduce the number of commutation failure. Finally，taking Jiangsu power grid as an example，the simulation results in PSS/E show that the proposed strategy can effectively reduce the number of continuous commutation failure and shorten the time of commutation failure recovery in multi-infeed hybrid DC systems.