Protection device applied to continuous roller operation vehicle

The invention relates to the technical field of oil exploitation, in particular to a protection device applied to a continuous roller operating vehicle, which comprises a hydraulic pump control circuit, a hydraulic motor brake oil circuit, a sensor module and a limit value alarm module, the hydraulic pump control circuit comprises a relay, the control end of the relay is electrically connected with the limit value alarm module, and a normally-closed contact of the relay is arranged in the hydraulic pump control circuit in series. The hydraulic motor braking oil way comprises a protection valve, the control end of the protection valve is electrically connected with the limit value alarm module, and the protection valve is arranged in the hydraulic motor braking oil way in series. The sensor module is electrically connected with the limit value alarm module and is used for collecting a lower pipe pressure signal and a lower pipe speed signal; and the limit value alarm module is used for generating an alarm sign