Oil level measurement device

The application relates to an oil level measurement device applied to the technical field of the measurement. The device comprises a probe cavity, a pipe body, and a connector; the probe cavity is connected with the pipe body through the connector; a first capacitance polar plate and an oil level measurement conversion circuit are arranged in the probe cavity; a second capacitance polar plate is arranged in the pipe body; the probe cavity is connected with the pipe body through the connector; the oil level measurement conversion circuit converts a capacitance change signal produced by oil level change between a first capacitance polar plate and a second capacitance polar plate connected with the oil level measurement conversion circuit into a digital signal; each of the probe cavity, the pipe body, and the connector is made of stainless steel material, and the size of a radial section of each of the probe cavity, the pipe body and the connector is less than the size of an oil injectionhole opening on a radial