The　treatment　of　a　dewatered　liquid　of　dry　fermentation　via　the　anammox　process　was　investigated　in　the　present　study.　Fast　acclimation　was　established:　within　2-months　of　operation,　nitrogen　removal　rate　reached　5　times　(5.5　g-N/L/d)　higher　than　it　was　at　startup,　which　was　achieved　by　inoculation　with　cold-stored　HAP-anammox　granules　and　inhibition　control.　The　specific　anammox　activity　of　the　dewatered　liquid　was　highly　improved　and　quite　comparable　to　that　of　synthetic　wastewater.　Ca.　Kuenenia　with　the　relative　abundance　of　31.1%　was　revealed　to　be　the　only　anammox　genre　and　maintained　its　dominance　throughout　the　operation.　Simultaneously,　Ca.　D.　denitrificans　was　proliferated,　with　its　relative　abundance　increasing　from　1.5%　to　14.9%.　The　microbial　co-occurrence　network　of　HAP-anammox　granules　developed　during　the　treatment　of　the　dewatered　liquid　of　dry　fermentation.　The　experience　of　this　work　provides　valuable　strategies　facilitating　fast　acclimation　of　the　anammox　process　for　the　treatment　of　high-strength　wastewater.