A　control　strategy　is　proposed　to　coordinate　the　voltage　control　between　DFIG-based　wind　farm　and　STATCOM.　The　principle　of　ADHDP(Action-Dependent　Heuristic　Dynamic　Programming)　is　described　and　a　voltage　coordination　controller　is　designed　based　on　it,　which　takes　the　sending　bus　voltage　deviation　of　wind　farm　as　its　input　and　adopts　neural　network　model　to　construct　its　execution　network　and　evaluation　network.　The　additional　voltage　reference　sent　to　DFIG-based　wind　farm　and　STATCOM　is　generated　by　the　execution　network　through　minimizing　the　cost　function　outputted　by　the　evaluation　network.　Simulation　is　carried　out　for　different　wind　speeds　and　voltage　sags,　which　shows　that,　the　ADHDP-　based　controller,　as　a　supplementary　damping　controller,　coordinates　the　grid-voltage　control　between　DFIG-　based　wind　farm　and　STATCOM,　and　suppresses　the　post-fault　grid-voltage　oscillation,　verifying　the　effectiveness　of　the　proposed　control　strategy.