Pressure sensing device applied in high-voltage environment

The invention relates to a pressure sensing device applied in a high-voltage environment. Detected solution or melt flows in a pipeline or a box body. The pressure sensing device is mainly composed of a connector, insulating liquid and an elastic membrane, wherein the connector is in a hollow cylinder, the elastic membrane is located at the lower portion of the connector and seals an inner cavity of the connector, a pressure sensor is arranged in the inner cavity of the upper portion of the connector, the insulating liquid is located in the inner cavity, located between the pressure sensor and the elastic membrane, of the connector, the elastic membrane contacts the insulating liquid, the insulating liquid contacts the pressure sensor, the connector is arranged on a base seat, the base seat is a hollow cylinder, the base seat is firmly connected with the pipeline or the box body, and an inner cavity of the base seat is communicated with a cavity body of the pipeline or the box body. The pressure sensing devic