Miura turns 54 on 26 February, the day before the 2021 J League campaign begins.
The former Japan striker joined Yokohama in 2005 and will play his 17th season for the club.
“My aspirations and passion for football are only increasing,” he said.
Miura started his career with Brazilian side Santos in 1986 and became the oldest player to score in a Japanese professional league game with his 2017 goal against Thespakusatsu Gunma aged 50 years and 14 days.
Dubbed ‘King Kazu’ in Japan, Miura is one of the country’s most loved sportsmen and was the face of the J League when it launched in 1993.
He scored 55 goals in 89 games for Japan and has played for Serie A side Genoa, before stints in Croatia and Australia.