Smoking detection device

According to the technical scheme, the smoking detection device comprises a detector shell, a power source and an independent power source are fixedly arranged in the detector shell, and a smoke and gas sensor is fixedly connected into the detector shell through screws. The smoke and gas sensor is fixedly arranged on one side of the smoke and gas sensor, a smoke and gas sensor signal acquisition circuit board is fixedly arranged on one side of the smoke and gas sensor, and an infrared sensor module is arranged at the bottom of the smoke and gas sensor. The recording memory can provide recording backup when the smoking detection device is powered off, the recording memory comprises a light emitter triggered by one or more smoking detection events and intervention events, and the light emitter comprises a light sensing device to identify a smoking event or user interference when the smoking detection device is in operation. A visual means is provided for exposing a smoking event, and smoke can be effectively de