Detection device suitable for predatory mites

The utility model relates to the technical field of predatory mite feeding, in particular to a detection device suitable for predatory mites, which comprises a main frame, a detection probe is assembled on the main frame, a support frame is arranged below the detection probe, a spacing adjusting mechanism is assembled on the support frame, the spacing adjusting mechanism comprises a bracket, and the bracket is arranged on the main frame. The bracket is fixed to the supporting frame, two sliding blocks are connected to the upper surface of the bracket in a sliding mode, a two-way threaded rod is arranged in the two sliding blocks in a jointly penetrating mode, the two ends of the two-way threaded rod are connected with the two sliding blocks through threads respectively, and threads on the surfaces of the two ends of the two-way threaded rod are designed oppositely; according to the utility model, the conveying mechanisms are arranged below the detection probe, so that a detection sample can be automatically c