PROBLEM TO BE SOLVED: To provide a floor sensor for biological information detection in which a sensor for detection can be installed under a floor surface to enable a user to perform so-called watching for 24 hours even while having normal daily actions indoors and detect body motion and biological information.SOLUTION: The floor sensor for biological information detection includes a circuit board 2 having appropriate stiffness, a detection tube 3 uniformly disposed on the circuit board 2 at suitable intervals in a communication manner in a planar view, and a floor surface board 5 provided over the detection tube 3. The detection tube 3 is connected to a sensor module 6, and within a range other than a connection part to the sensor module 6, a tube inner space is a sealed space.
