Аннотация:Results are presented of photoelectric UBV photometry of the irregular variable RZ Piscium carried out in 1974 - 1983. 13 minima were observed, for 8 of them continuous photometry was obtained. A heterogeneous relation between the V brightness and (B-V), (U-B) colours is found which indicates the presence of several sources of the variability. Minima fainter than 13m obey the period of 12d.67.