Method and device for correcting channel quality information

The invention discloses a method and a device for correcting channel quality information (CQI) for overcoming the technical defect of low channel utilization rate because the feedback CQI does not contain multi-antenna processing gain. The CQI fed back by a client is corrected by using feedback channel state information (CSI), and the adopted multi-antenna mode processing gain is reflected to the CQI, namely the corrected CQI contains the multi-antenna processing gain so that the channel can bear higher modulation and coding modes and the utilization rate of the channel is improved.