This invention discloses a capture-tracking control system and method of multi-laser terminal based on master-auxiliary eye model. Specifically, a dual-subsystem with a master subsystem and an auxiliary subsystem are adopted for access of a plurality of terminals; at the same time, the master subsystem comprises a capture-tracking light path, and further comprises a branch light path that enters a precise-tracking or communication subsystem; the auxiliary subsystem is not provided with the branch path; mutual interference of light beams among a plurality of terminals can be eliminated; the overlap problem of light spots in the access process of the plurality of terminals can be solved; and the acquiring accuracy of an arrival angle of incident laser is improved. Without using a relevant mechanical rotation mechanism, the adopted light beam direction controlling and forming technology completely uses a phase-control mechanism; the system has basic characteristics of the optical phase control, such as agile switching, multi-beam forming, beam forming, and so on; and thus, the plurality of accessed laser terminals has a flexible access capability, and can realize multi-terminal access.