A device for carrying out gesture recognition based on a pressure sensor array, comprising a muscle tendon pressure signal acquisition unit, a signal conversion unit, a data processing and gesture action identification unit and the like, and being characterized in that the pressure sensor array of the muscle tendon pressure signal acquisition unit is mounted on an inner side, close to skin of a user, of a wearing mechanism. And a method for carrying out the gesture recognition based on the pressure sensor array, comprising: step 1, acquiring a signal caused by detected muscle tendon pressure of a wrist of the user; step 2, extracting characteristic data for characterizing hand gestures or actions of the user of detected muscle tendon from the acquired signal; and step 3, analyzing the extracted characteristic data to determine the hand gestures or actions of the user. The gesture recognition method and device, provided by the invention, have the advantages of being simple in principle and high gesture recognition accuracy. Meanwhile, the utilization of the device is not limited by conditions; and the device can be combined with wearable equipment including intelligent watches, bracelets and bangles, so that the device is more easily popularized and utilized.