A feedback signal coding method and apparatus. The method includes the following steps: coding feedback signals for three carriers; through HS-DPCCH transmitting the bit series that have been coded and output. The step of coding feedback signals for three carriers includes the following aspects: the feedback signals for the three carriers are mapped to codes of one code block; the codes can be selected from the code block; and the codes in the code block have a certain code distance relationship. Embodiments of the invention provide methods of joint coding of feedback signals for three carriers in the TC mode. Through the methods, signals are transmitted in a single code channel, power overhead is saved and system performance is improved.
