Automatic water sample collector

The invention relates to the field of water sample collection, in particular to an automatic water sample collector which comprises a main body bracket, a water collection device, a water diversion device and a control system, wherein the water collection device, the water diversion device and the control system are mounted on the main body bracket; the water diversion device is provided with a water diversion mechanism and plastic bottles for accommodating water samples; the water collection device is connected with the water diversion mechanism on the water diversion device through a water pipe; the water collection device and the water diversion mechanism are controlled to be started or stopped through the control system; the collected water samples enter the water diversion mechanism under the action of the water collection device and enter the plastic bottles used for accommodating the water samples under the action of the water diversion mechanism; a pipe placement mechanism is arranged on the water collection device; a long water pipe for pumping the water samples is wound on the pipe placement mechanism when the device does not work and put down through the pipe placement mechanism during water sample collection. The automatic water sample collector is high in automation degree, high in water sample collection efficiency and high in adaptability.