The invention discloses a large-capacity high-speed quasi-automatic chemiluminescence immunoassay analyzer. The analyzer comprises a box body unit, a plate shifting unit, a plate fetching and delivering unit, a plate unreeling unit, a vibration unit, a cleaning unit, an incubation unit, a substrate charging unit, a detection unit and a system operation control section. The analyzer can automatically complete vibration uniform-mixing, incubation, plate washing, substrate charging and luminescence value reading operations according to preset procedures, can process a large number of samples once, has several incubation positions, can be combined with a matching sample charging machine to form a complete fully-automatic plate type chemiluminescence immunoassay instrument, and has a very high work efficiency.