The 1947–48 Divizia B was the ninth season of the second tier of the Romanian football league system.
Next season (1948–49) the format would be changed again, this time in two series of 14 teams, therefore in this season relegated all the teams ranked below the 7th place, a total of 36 teams (9x4) plus the worst two ranked on the 7th place.
CFR Buzău and Dinamo Suceava were enrolled directly in the second division.
Victoria Cluj was dissolved at the end of the previous season and was excluded from Divizia B.
Sanitas Satu Mare and Olimpia CFR Satu Mare merged, Sanitas being absorbed by Olimpia which was also renamed simply as CFR Satu Mare.