The 1950 National League Division Two was the fifth post-war season of the second tier of motorcycle speedway in Great Britain.
The League was extended again to 15 teams with the promotion from Division Three of Halifax Dukes, Plymouth, Yarmouth and Hanley. Bristol Bulldogs, champions for the previous two seasons, moved up to Division One.
Norwich Stars claimed the league title by a single point, while Halifax and Cradley Heath claimed the early season Northern and Southern Shields respectively, the latter on points difference.
On 1 July 1950, two riders were killed on the same night. Jock Shead riding for Halifax Dukes was killed at The Firs Stadium, (the third rider in four years to be killed at the track) during the semi-final of the National Trophy. Shead's bike collided with another bike and he somersaulted before landing, he was take to hospital but died shortly afterwards. A second rider was killed on the same night in a division 1 fixture.
The 1950 National Trophy was the 13th edition of the Knockout Cup. The Trophy consisted of three stages; stage one was for the third division clubs, stage two was for the second division clubs and stage three was for the top-tier clubs. The winner of stage one would qualify for stage two and the winner of stage two would qualify for the third and final stage. Halifax won stage two and therefore qualified for stage three.
Second Division Qualifying First round
Second Division Qualifying Second round
Second Division Qualifying semifinals
First leg
Second leg
Southern Shield
Northern Shield
Ashfield
Coventry
Cradley Heath
Edinburgh
Fleetwood
Glasgow
Halifax
Hanley
Newcastle
Norwich
Plymouth
Sheffield
Southampton
Walthamstow
Yarmouth