The invention discloses equipment for monitoring the running state of an oil fume purifier, which comprises a first sampling device, a second sampling device, an oil fume monitor and a fan; one end ofthe first sampling device and the second sampling device are arranged in a flue, the other end of the first sampling device and the second sampling device are communicated with the oil fume monitor,the oil fume purifier is connected in the flue and arranged between the first sampling device and the second sampling device, and the fan is arranged behind the first sampling device and the second sampling device. The equipment for monitoring the running state of the oil fume purifier realizes monitoring of oil fume emission and monitoring of the purification efficiency of the oil fume purifier.