Sputter film type soil pressure sensor

The invention discloses a sputter film type soil pressure sensor which comprises an elastic sensitive element, an annular thin-walled cylinder, a circular film type strain gauge, a lead connection plate and an upper sealing cover. The elastic sensitive element is fixedly connected with the lower end of the annular thin-walled cylinder, the circular film type strain gauge is arranged in the annular thin-walled cylinder and clings to the inner surface of the elastic sensitive element, the lead connection plate is arranged in the annular thin-walled cylinder and is positioned above the circular film type strain gauge, electrode points of the circular film type strain gauge are connected with connection weld points on the lower surface of the lead connection plates by gold wire leads, a connection weld point on the upper surface of the lead connection plate is connected with an ordinary signal lead by a signal lead-out wire, and the upper sealing cover is fixedly connected with the upper end of the annular thin-walled cylinder. The sputter film type soil pressure sensor has the advantages that the circular film type strain gauge and the annular thin-walled cylinder are in separate structural designs, accordingly, adhesive agents can be omitted during production, instability of the performance of the sensor due to influence of environmental temperatures on the adhesive agents can be eliminated, and the reliability of the sensor can be improved.