In this work, we study the function B s,t (n), which counts the number of (s, t)-regular bipartitions of n. Recently, many authors proved infinite families of congruences modulo 11 for B 3,11 (n), modulo 3 for B 3,s (n) and modulo 5 for B 5,s (n). Very recently, Kathiravan proved several infinite families of congruences modulo 11, 13 and 17 for B 5,11 (n), B 5,13 (n) and B 81,17 (n). In this paper, we will prove infinite families of congruences modulo 5 for B 2,15 (n), modulo 11 for B 7,11 (n), modulo 11 for B 27,11 (n) and modulo 17 for B 243,17 (n) .