Real-time online sewage detection and analysis equipment

The utility model discloses real-time online sewage detection and analysis equipment. The sewage real-time online detection and analysis equipment comprises a main body, a sample introduction assembly, a water sample cup, a multi-channel switching extraction device, a mixing assembly, an extraction device, an analysis device and a reagent bottle, the sample introduction assembly can extract external sewage into the water sample cup so as to obtain a water sample, and the water sample in the water sample cup can facilitate subsequent analysis and detection; under the action of the multi-channel switching extraction device, the water sample cup, the mixing assembly, the extraction device, the analysis device and the reagent bottle can be respectively connected or disconnected, and in the analysis and detection process of the water sample, the multi-channel switching extraction device can respectively extract the water sample and a reagent solution from the water sample cup and the reagent bottle into the mixing