Lubricating oil moisture content detection device

The invention discloses a lubricating oil moisture content detection device. The device comprises a detection tank, a plurality of sampling assemblies, a measurement assembly and a visual measurementcavity; the plurality of sampling assemblies are respectively fixed at two sides of the lower end of the detection tank; the measurement assembly and the visual measurement cavity are respectively fixed at the other two sides of the detection tank; each sampling assembly comprises a distribution block, a plurality of connecting blocks and a sampling hose joint; the measuring assembly comprises a mounting bracket, a water-in-oil sensor, a direct-current power supply, an orange indicator lamp, a red indicator lamp and a buzzer; the visual measurement cavity is communicated with the detection tank, and a probe of the water-in-oil sensor extends into one side of the visual measurement cavity. The device is simple in structure, simple and portable, can be installed at any proper place on a diesel engine, can detect the