Crude oil low water content analyser

The utility model relates to a crude oil low water content analyzer, which comprises a sampling part, a sample taking part, a measurement part and a controller, wherein, a mounting seat of the sample taking part is provided with an oil inlet pipe and an oil return pipe; the upper part of the measurement part is a measurement room, and the lower part is an oil-gas separation room. Each part of the measurement part is communicated by valves, pipelines, oil return pump, etc. to form a loop. The utility model can directly take out crude oil from an oil pipeline to perform analysis, and the automatic detection on the production lines of crude oil exploitation, oil refining, etc. is realized. The utility model also meets the need of detection of the crude oil with low water content.