Okada was born in Osaka on August 25, 1956. After graduating from Waseda University, he joined Japan Soccer League club Furukawa Electric in 1980. In 1982, the club won 1982 JSL Cup. In 1985/86 season, the club won Japan Soccer League and JSL Cup, and he was selected Best Eleven. The club also won 1986 Asian Club Championship. This is the first Asian champions as Japanese club. He retired in 1990. He played 189 games and scored 9 goals in the league.