Schmidt had perhaps his best season in 1957. As team captain, he appeared in every game and led the 1957 Lions to their third NFL championship in six years. Schmidt intercepted two passes in the post-season and led the Lions to a 59–14 victory over the Browns in the 1957 NFL Championship Game. For the second time in his career, Schmidt was selected as the Lions' most valuable player. He was involved in half of the Lions' tackles, including 80 initial tackles and 77 assists in 12 games, was selected as a first-team All-Pro by the AP, UPI, NEA and "The Sporting News", and was named the NFL Lineman of the Year in an AP poll of NFL writers.