He made his professional debut in March 1975, joining Hanakago stable. He joinedHanaregoma stable when Hanakago was wound up in 1985. After many years in the lower ranks he finally reached the makuuchi or top division in March 1988 at the age of 28. His best result in a tournament came in September 1988 when he won eleven bouts, defeated ōzekiKonishiki and received the Fighting Spirit Award. He defeated yokozunaHokutoumi in September 1989 to earn his only kinboshi. Chiyonofuji defeated him in March 1990 to become the first wrestler to win 1000 career bouts. His highest rank was maegashira 1. His last appearance in the top division came in November 1992 and he spent the last two years of his career back in the jūryō and makushita divisions.
Hananokuni′s favoured kimarite or techniques included yori taoshi, uwatenage and shitatedashinage (pulling inner arm throw. He used a migi yotsu grip on the mawashi, with his left hand outside and right hand inside his opponent′s arms.