We presented a biosignals detection method using neonate’s load information. Non-invasive monitoring is necessary for harmless and burdenless medical care of neonates. We have developed multi-biosignals monitoring device using quartz crystal resonator (QCR) load sensor, which has wide-measurement range. The detection of neonate’s biosignals from neonate’s load information is required to realize non-invasive monitoring system. However, the measurement of neonate’s heart rate is difficult since neonate’s load information is low signal-noise ratio due to the low amplitude of neonate’s biosignals. We proposed heart rate detection algorithm using Fast Fourier Transform (FFT) analysis. As a result, we succeeded in measuring neonate’s heart rate, the average and the standard deviation of the difference between the reference was 0.7 bpm and 3.5 bpm. Consequently, we confirmed the possibility of neonate’s heartbeats detection from neonate’s load information.