Foetal magnetocardiography (fMCG) is a promising technique for prenatal cardiac diagnosis.In this paper, we discuss the special requirements of a system for fMCG measurements. ASQUID system incorporating five HTS rf SQUID magnetometers has been developed andconstructed. Four magnetometers are arranged at the bottom of the cryostat in a4 cm × 4 cm square configuration. One reference magnetometer is located 20 cm above the plane to formfour first-order axial gradiometers with the four bottom magnetometers. Themagnetometer with a 18 mm diameter flux focuser, which reaches a field sensitivity of20–30 fT Hz−1/2, proved sufficient for recording foetal magnetocardiograms in a magneticallyshielded room. The cardiac activities of two foetuses (31st and 33rd weeks ofgestation) were recorded in 90 Hz bandwidth. The foetal QRS peak signals rangedfrom 4 to 7 pT and could easily be identified in the real-time gradiometer outputswith a signal-to-noise ratio of up to five. Furthermore, the averaged fMCG dataenabled the determination of de- and repolarization time intervals. Overall, thefMCG signals proved of sufficient quality to perform foetal heart diagnostics.