A sample measuring device according to the present invention includes a measuring unit for performing measurement with respect to a particular component contained in a sample, a measurement data storage unit for storing measurement data obtained by the measuring unit, a display unit for displaying the measurement data, a sensor strip detector for detecting insertion and removal of a sensor strip to which the sample is applied, and a first data transmitter/receiver for transmitting the measurement data via wireless communication. The first data transmitter/receiver performs initial authentication process for wireless communication after insertion of the sensor strip is detected by the sensor strip detector.