The "Foot Grabbing the Lower Body Exercise" is based on Tai Chi and is aimed at strengthening the lower body. There are six moves in total. The features are simple, easy to learn and effective in strengthening the lower body muscle strength and balance of the practitioner. As long as the practitioner stands on the pressure mat and exercises, the intelligent software will perform real-time calculations to display the pressure distribution of both feet and pressure of center changes. The abstract Tai Chi mechanical principles are transformed into visible images and data, allowing users to know the accuracy of their own movements and correct their postures.