The present invention relates to a method of automatically processing test strip purchase notice information. When a test strip is inserted into a bio-data measuring device, the bio-data measuring device recognizes insertion of the test strip. The bio-data measuring device measures bio-data from a material absorbed by the test strip, and counts the test strip used to measure the bio-data as a validly used test strip. The bio-data measuring device stores a count value obtained by counting the test strip as a validly used test strip. If a resulting count value, obtained by repeating above operations and increasing the count value, reaches a predetermined number, the bio-data measuring device automatically transmits information about the resulting count value to a server. The server receives the information about the resulting count value, and automatically transmits test strip purchase notice information to the bio-data measuring device.
