After graduating from Waseda University, he joined Mitsubishi Motors (later Urawa Reds) in 1967.

In October 1964, when Mori was a Waseda University student, he was selected Japan national team for 1964 Summer Olympics in Tokyo.

[2] After retirement, in November 1980, Mori became a coach for Japan national team under new manager Saburo Kawabuchi.

At 1986 World Cup qualification in 1985, Japan defeated Singapore, North Korea and Hong Kong to reach the final round of the East Asian zone to play South Korea.

However, Urawa Reds finished at the bottom place in J1 League first season and he resigned.

On July 17, 2011, he died of renal pelvis cancer in Meguro, Tokyo at the age of 67.