To provide an inexpensive system with excellent portability, capable of reducing loads of signal processing in a body unit and permitting use of a miniaturized data processing terminal etc. with high versatility as the body unit by configuring a biological signal processing unit having a signal processing part for processing measuring data such as ECG data, SpO2 data and NIBP (Non Invasive Blood Pressure) data to be separable from the body unit.

The portable biological signal measuring/transmission system measures at least one biological signal of the ECG data, SpO2 data and NIBP data, etc. In the portable biological signal measuring/transmission system, the biological signal processing unit including the signal processing part for processing measuring data such as the ECG data, SpO2 data and NIBP data is separable from the body unit including at least a display part.