Sixteen English clubs competed for the Championship, with Featherstone Rovers claiming the title.
In July 1976, the Rugby League Council imposed a ban on players moving to Australian clubs on short term contracts unless a transfer fee was paid.
Leeds beat Widnes 16-7 in the final played at Wembley Stadium on Saturday 7 May 1977 in front of a crowd of 80,871.
The winner of the Lance Todd Trophy was the Leeds prop, Steve Pitchford.
Rugby League Premiership Trophy Winners were St. Helens who beat Warrington 32-20.