The official rules for the elections were outlined in the new Constitution of the Polish People's Republic and lesser acts.

[2] The Front candidates received 99.8% of the vote and won every seat, a result that was to be repeated in parliamentary elections until 1989.

[2] The communists had spent the five years since winning the rigged 1947 elections tightening their grip on the country.

The Bierut government, like its kindred regimes in the rest of the Soviet bloc, was determined to tighten its control over society as much as possible.

Voters were presented with a single list from the Front of National Unity (FJN), comprising the PZPR and its two satellite parties, the Alliance of Democrats (SD) and the ZSL.

[12] In return for accepting the "leading role" of the PZPR—a condition of their continued existence—the minor parties in the Front received a fixed number of seats in the Sejm.

Within the FJN, the PZPR held an absolute majority with 273 seats (64% of the total), its highest share to date.