▎ 摘　　要

NOVELTY - Preparing paper-based flexible pressure sensor involves vacuum drying paper, putting dried paper and graphene oxide dispersion into culture dish to mix, so that the graphene oxide dispersion is completely soaked to wet the paper. The compacted heavy object on paper soaked in graphene oxide dispersion liquid is covered. Smooth compaction is performed followed by soaking paper in graphene oxide dispersion liquid for 8-24 hours, transferring soaked paper at 100-500 degrees C for high temperature processing for 3-5 hours to obtain reduced graphene, cooling paper after high temperature treatment to room temperature, taking out n layers of paper, and stacking orderly, connecting upper and lower layers with two conductive adhesive tape, and packaging by battery packaging tape, exposing end of conductive tape to obtain paper based flexible pressure sensor, where n is natural number greater than or equal to 3. USE - Method for preparing paper-based flexible pressure sensor for monitoring various micro pressure actions of human body, such as pulse, breathing and throat sounding, and in wearable flexible devices. ADVANTAGE - The sensor has simple preparation process, high production efficiency, better environment-friendly performance by selecting naturally degradable paper as the sensor matrix, high sensitivity, better durability and stability and prolonged service life, and saves economic cost, and is light and flexible.