Automatic liquid-sampling device

The invention provides an automatic liquid-sampling device, comprising a working platform, wherein an electric liquid-transfer device, a sensor, an automatic control system and eight movable functional components, i.e., a turntable I for placing a bottle rest I of a bottle A, a turntable II for placing a bottle rest II of a bottle B, a turntable III for placing a bottle rest III of a sampling head, a transfer table I for transferring the bottle A, a transfer table II for transferring the bottle B, a transfer table III for transferring a sample in the electric liquid-transfer device, a clamping base I for clamping the bottle A and a clamping base II for clamping the bottle B, are arranged above the working platform; and the automatic control system is respectively connected with the eight components. Through the automatic liquid-sampling device, liquid in a sealed container can be sampled in the environment of strong ionizing and radiation, a same sample can be sampled repeatedly, and different samples can be sampled continuously; in addition, the components of the sampling device can also be operated individually.