An adaptive frequency domain resource configuration method, comprising: receiving, by a receiving apparatus, a pilot signal transmitted by a transmitting apparatus, wherein the transmission bandwidth is divided into several frequency regions; measuring, by the receiving apparatus, the pilot signal and obtaining, by the receiving apparatus, channel information from the measured pilot signal; feeding back, by the receiving apparatus, the channel information to the transmitting apparatus; and obtaining, by the transmitting apparatus, a frequency resource group by dividing each frequency region according to different numbers of subcarriers, wherein all frequency regions form the transmission bandwidth frequency of the transmitting apparatus, wherein the receiving, by the receiving apparatus, the pilot signal transmitted by the transmitting apparatus comprises: receiving, by the receiving apparatus, the pilot signal, wherein the pilot signal is transmitted by the transmitting apparatus in each subcarrier of each frequency region; the measuring, by the receiving apparatus, the pilot signal and obtaining, by the receiving apparatus, channel information from the measured pilot signal, comprises: measuring, by the receiving apparatus, a CQI value corresponding to each frequency resource group of the transmitting apparatus in each frequency region, wherein each subcarrier in each frequency resource group carries one pilot signal; the feeding back, by the receiving apparatus, the channel information comprises: feeding back, by the receiving apparatus, each CQI value corresponding to each frequency resource group to the transmitting apparatus; and the obtaining, by the transmitting apparatus, the frequency resource group in each frequency region comprises: acquiring, by the transmitting apparatus, a maximum CQI value from the CQI values corresponding to each frequency resource group and assigning the number of subcarriers in each frequency resource group according to the maximum CQI value. receiving, by a receiving apparatus, a pilot signal transmitted by a transmitting apparatus, wherein the transmission bandwidth is divided into several frequency regions; measuring, by the receiving apparatus, the pilot signal and obtaining, by the receiving apparatus, channel information from the measured pilot signal; feeding back, by the receiving apparatus, the channel information to the transmitting apparatus; and obtaining, by the transmitting apparatus, a frequency resource group by dividing each frequency region according to different numbers of subcarriers, wherein all frequency regions form the transmission bandwidth frequency of the transmitting apparatus, wherein the receiving, by the receiving apparatus, the pilot signal transmitted by the transmitting apparatus comprises: receiving, by the receiving apparatus, the pilot signal, wherein the pilot signal is transmitted by the transmitting apparatus in each subcarrier of each frequency region; the measuring, by the receiving apparatus, the pilot signal and obtaining, by the receiving apparatus, channel information from the measured pilot signal, comprises: receiving, by the receiving apparatus, the pilot signal, wherein the pilot signal is transmitted by the transmitting apparatus in each subcarrier of each frequency region; the measuring, by the receiving apparatus, the pilot signal and obtaining, by the receiving apparatus, channel information from the measured pilot signal, comprises: measuring, by the receiving apparatus, a CQI value corresponding to each frequency resource group of the transmitting apparatus in each frequency region, wherein each subcarrier in each frequency resource group carries one pilot signal; the feeding back, by the receiving apparatus, the channel information comprises: feeding back, by the receiving apparatus, each CQI value corresponding to each frequency resource group to the transmitting apparatus; and the obtaining, by the transmitting apparatus, the frequency resource group in each frequency region comprises: feeding back, by the receiving apparatus, each CQI value corresponding to each frequency resource group to the transmitting apparatus; and the obtaining, by the transmitting apparatus, the frequency resource group in each frequency region comprises: acquiring, by the transmitting apparatus, a maximum CQI value from the CQI values corresponding to each frequency resource group and assigning the number of subcarriers in each frequency resource group according to the maximum CQI value.