The utility model discloses a water taking irrigation device for agricultural machinery. Device comprising a device body, a water inlet joint is fixedly mounted on the bottom side of the device body;a connecting pipe is fixedly mounted on one side of the water inlet joint; one end of the connecting pipe is communicated with the interior of the device body; a fixed pipe is fixedly mounted on the top side of the connecting pipe; wherein the fixed pipe is communicated with the interior of the connecting pipe, an alarm box body is fixedly installed on the top side of the fixed pipe, a connectingport is formed in the inner wall of the bottom side of the alarm box body, the fixed pipe penetrates through the connecting port and is communicated with the interior of the alarm box body, and an installation pipe fixedly installed on the inner wall of the bottom side of the alarm box body is arranged above the connecting port. The water intake irrigation device for the agricultural machinery issimple in structure, and can give an alarm in time when water shortage occurs, so that farmers are reminded to turn off the irrigation device in time, damage caused by idling due to water shortage isprevented, the service life of the irrigation device is prolonged, and meanwhile water for agricultural production is guaranteed.