The invention relates to a method for extracting TCAM (Ternary Content Addressable Memory) command response from multi-lane serdes. The method comprises the steps that firstly,a command response returned by the TCAM is marked,the marking principle is that the head of the command response serves as the boundary to be increased progressively,and the upper limit of increasing is the number of computing units for extracting the TCAM command response; then each computing unit processes the command response of the respective corresponding label in parallel,and the formats of the processing results are unified; and finally,the processing results of the computing units are output in sequence according to a labeling sequence,so that only one TCAM command response is received in a single clock period,and the command response formats are unified. By adopting the method provided by the invention,the out-of-order problem of the command response returned by the TCAM can be well solved,and a beneficial reference is provided for a search matching technology realized based on the TCAM.