The invention provides a multi-missile cooperation high-accuracy guidance control method based on a beam riding guidance system. The multi-missile cooperation high-accuracy guidance control method based on the beam riding guidance system has the beneficial effects that a multi-missile cooperation guidance manner is adopted for transmitting a following error formed in the process of using a follow-up launched missile to follow a guidance beam center line to a previous launched missile, and the previous launched missile takes the received following error as a ring-opening error compensation error and leads the ring-opening error compensation error into a control system, so that the type of the guidance control system can be substantially improved, and the problem that when the missile follows the guidance beam center line, the missile easily misses even flies out of a guidance beam to be out of control, is effectively solved; meanwhile, after the correction of the following error is completed, a target indication error formed in the process of using a guidance station to follow a target is calculated according to the target position obtained by the previous launched missile, and then is transmitted to the follow-up launched missile, so that the follow-up launched missile corrects the guidance beam center line followed by the follow-up launched missile according to the target indication error, thereby substantially eliminating the influence of the target indication error on the hitting precision of the missile.