To provide a health care device in which measured values on a health condition and mode setting can be easily managed or which dispenses with a power source for a main body of a measuring instrument and to provide a physical condition managing module device to be used therefor.

This health care device is provided with a connection means 11 to be connected with a physical condition managing module device 20, a storage means 13 for storing information on a physical condition from this physical condition managing module device 20, a control means 12 for generating data associated with time information on the basis of this information on the physical condition, a display means 14 for displaying these data and a power supply means 15 for supplying power to the physical condition managing module device 20. Besides, the physical condition managing module device is provided with a connection part 21 to be connected with the health care device 10, a measuring part 24 for measuring the temperature of a living body, a storage part 23 for storing this measured value and a control part 22 for transferring the value measured by this measuring part 24 to this health care device 10 when connected with this health care device 10.