The 1950 Soviet football championship Class B was the 10th season of the Soviet football championship second tier and inaugural season of the Class B (predecessor of Soviet First League). In 1950 the Soviet football championship renamed its two tiers from Groups First and Second to Classes A and B.
The league was reduced from a multi-group tournament to single group to which were grandfathered seven teams from last season "Central Zone" and one team from every other zones, also two more teams were promoted. Many teams from last season were forced into relegation to their respective republican competitions.
Worst team of the Russian SFSR qualified for relegation playoff. Both matches were taken place in Makhachkala. The city of Kalinin were champions of the 1950 Football Championship of the Russian SFSR.
Team 1
Agg.
Team 2
1st leg
2nd leg
Dzerzhinets Chelyabinsk
2–7
Kalinin city
1–0
1–7
For 1950 MVO Moscow was stationed in city of Kalinin.