The invention discloses a method for generating an MBE-SSP (Multi Band Excitation-Service Switching Point) control code sequence. The method comprises the steps: step 1, a distributing and negotiating stage; step 2, the generation of an initial secret key sequence: feeding an initial value X0 and a parameter value [mu] into a chaotic system through an Alice, iterating for N times to obtain N real numbers, selecting N real numbers including X1a, X2a, ..., Xna from the chaotic system, and respectively performing binarization processing on the X1a, X2a, ..., Xna, and generating a binary initial secret key sequence S0a; step 3, generating a check code sequence and a control code sequence; step 4, transmitting and approving the check code sequence; and step 5, displacing the control code sequence to circularly generate a process of discharging codons. According to the method, the initial secret key sequence is randomly generated by the extreme sensitivity of the chaotic system on a primary state and parameters and the good randomness of a chaotic sequence, the check code sequence and the control code sequence can be obtained by grouping, excluding and extracting, and the check code sequence can be transmitted by a quantum channel, so as to guarantee the validity of two communicating parties and the effectiveness of the control code sequence.