Pressure sensitive element, packaging method and pore pressure gauge

The invention discloses a pressure sensitive element, a packaging method and a pore pressure gauge. The pressure sensitive element comprises a sensitive core body, a PCB conversion circuit plane, a sensitive element protective shell and a shield cable, the PCB conversion circuit plane is fixedly placed in the sensitive element protective shell, and through the sensitive core body and the shield cable fixedly connected on the PCB conversion circuit plane, space occupied by an original big glass frame (a glass ring) is saved; due to the fact that an unstressed glue has functions of heat insulation, waterproof and sealing, the unstressed glue is used for protecting the sensitive core body, the fact that under the premise of ensuring that pressure of a liquid medium can be measured, few coating contact surface is only needed, the pressure of the liquid medium can be accurately measured,the sensitive core body can be protected from thefunction of lateral external force, and the shell body wall of the sensitive ele