Water sample automatic pretreatment device, treatment method and water sample automatic detection system

The invention discloses an automatic water sample pretreatment device, a treatment method and an automatic water sample detection system. The automatic water sample pretreatment device comprises a rack, and a solid-phase microextraction mechanism, a liquid sample introduction mechanism, a nitrogen blowing mechanism, a liner tube grabbing mechanism, a solvent supply mechanism, a vortex mixing mechanism, an automatic liner tube replacement mechanism, an incubation mechanism, an aging mechanism and a multidirectional movement mechanism which are mounted on the rack, the solid-phase microextraction mechanism is provided with a solid-phase microextraction head for adsorbing organic matters in a sample; and the liquid sample injection mechanism is provided with a liquid sample injection needle for sucking and adding a liquid sample. The automatic pretreatment device for the water sample can automatically complete two pretreatment modes of headspace solid-phase microextraction and liquid-liquid extraction of the wat