The present invention provides a code channel activation method, a code channel activation device, a computer program and a storage medium, so as to solve the problem in the prior art that performance loss of a receiver will be caused when performing code channel activation. The method comprises calculating correlation between interference code channels on which code channel activation is to be performed and a user code channel, and correlation between the user code channels, to obtain correlation results; and performing code channel activation according to the correlation results. According to the present invention, the code channel activation is performed according to the correlation between the code channels. As a result, it is able to reserve the code channels with more information, thereby to prevent the performance loss of the receiver.