A method and apparatus for collecting data, and more particularly, a data collecting method and apparatus which automatically transmit data to a wireless data transmitting/receiving station when an amount of data stored in the data collecting apparatus is more than a predetermined first reference value. A data collecting apparatus includes: a measuring module measuring data and storing the measured data in a storage unit; and a communication module automatically transmitting the stored data to a wireless data transmitting/receiving station when the amount of data stored in the storage unit is more than a first reference value.