PURPOSE: To provide a living body information processing system capable of easily being handled and automatically collecting living body information detected from an object to be measured, for example, the bodily temperature of the human body.

CONSTITUTION: A temperature sensing part 20 detects the bodily temperature of the human body (patient) by a temperature sensor 26 when a measurement instruction signal from a reader 1 is received via an antenna 21, a demodulator 22 and a PS/SP converter 23. The bodily temperature is converted to digital data by an A/D converter 27, and displayed on a display part 31, and also, it is transmitted via the PS/SP converter 23, a modulator 24 and the antenna 21. While. the reader 1 provided separately from the temperature sensing part 20 receives bodily temperature data transmitted from the temperature sensing part 20 via an antenna 2, a demodulator 4 and a PS/SP converter 5, and it is displayed on a display part 13, and also, it is stored in memory and printed by a printer 15 at need. Therefore, it is possible to automatically collect, for example, the bodily temperature of the human body.