After retirement, Nishimura started coaching career at Matsushita Electric (later "Gamba Osaka") in 1991. In 1999, he became a manager for Japan U-20 national team. He managed U-20 Japan at the 2001 World Youth Championship in Argentina. In September 2001, he signed with Cerezo Osaka and became coach. In December, he became a manager as João Carlos successor and he led the club to won the 2nd place in Emperor's Cup. In October 2003, he was sacked. In 2004, he signed with Kyoto Purple Sanga. He was sacked in June.