The 1969–70 season was Port Vale's 58th season of football in the Football League, and their fifth successive season (sixth overall) in the Fourth Division. They achieved promotion with a fourth-place finish, taking them back into the Third Division. They started the season with an eighteen match unbeaten run in the league, and finished with nine games unbeaten following a dip in form around January. Manager Gordon Lee credited the teamwork and fitness of an extremely settled side for the promotion campaign, as ten players made at least 35 league appearances.