Toxicity detection device

The utility model discloses a toxicity detection device and relates to the technical field of toxicity detection. The bottom of a detection cavity is provided with a storage groove, a connecting column is movably clamped in the storage groove, the inner wall of the storage groove is provided with a first groove, a limiting block is movably clamped in the first groove, and one end, close to the top plate, of the connecting column is provided with a limiting groove in a clamping manner; by moving a fixing rod in the opposite direction, the fixing rod drives a limiting block to move out of a limiting groove, then a connecting column is driven to move through the elastic force of a third spring, and the connecting column drives a top plate to move, so that the top plate ejects a reagent bottle out of a detection shell, and the situation that the reagent bottle is inconvenient to take out can be avoided; a second spring drives an arc-shaped clamping plate to rotate through elastic force, and the arc-shaped clampin