Oliveirense said on social media that the forward, who has made three appearances for the club after joining from Japan's Yokohama FC in February, will stay with them next season.
Miura turned 56 in February and wants to keep playing until he is 60.
"There will be times where I'm not involved in games but I want to stay motivated and do what I can where I can," the Nikkan Sports daily quoted him as saying recently.
🇵🇹 Miura Kazu continua na UD Oliveirense 🔥
— UD Oliveirense Futebol SAD (@oliveirense_sad) July 11, 2023
🇯🇵 三浦知良選手、今シーズンも宜しくお願いします!🔥#UDOliveirenseNossa #NossaUnião #NossaPaixão pic.twitter.com/R3gJvlBARz