The invention discloses a tunnel secondary lining concrete pouring control system and method. The system comprises a trolley soft lap joint control module, a communication module, a PLC control analysis module, an alarm module, a pneumatic vibration control module, a plug-in vibration control module, a temperature module and a pressure module. The method comprises the following steps: S1, the pneumatic vibration control module and the PLC control analysis module control pneumatic vibration; S2, the plug-in vibration control module and the PLC control analysis module control plug-in vibration;and S3, the PLC control analysis module compares the estimated concrete pouring square value with the concrete flow data, when the concrete flow data is larger than the estimated concrete pouring square value, the PLC control analysis module sends an instruction to the alarm module, the alarm module sends an alarm signal, and concrete pouring is stopped. Automatic vibration in a tunnel secondary lining vault is achieved, and the phenomena of void separation, nonuniformity, honeycomb pitted surface and incompactness caused by local concrete blocking of the secondary lining vault are prevented.