Objective:To investigate the relationship between plantar pressure and plantar sensation in people with different foot types, and to provide theoretical help for the evaluation of injuries as well as sports recovery in patients with flat feet. Methods: The recruited subjects were initially screened by a three-dimensional footscanner; the groups were divided according to the arch index, 16 in the normal foot group and 16 in the flat foot group. Plantar pressure and plantar sensation tests were performed in different groups using the footscan high frequency plantar pressure test system and Semmes-Weinstein Monofilaments monofilament test, respectively. The test results were analyzed by spss24.0 for statistical description and correlation. Results: The plantar pressure impulses in the right and left arches (P=0.001,T=19.686; P=0.001,T=36.014) and the right and left medial heel regions (P=0.001,T=41.755; P=0.001,T=50.706) of the flat foot population tended to increase significantly (P<0.05) compared to the normal foot population; and there was a tendency for a significant increase (P<0.05) in the right arch and the first metatarsal (P=0.001,T=59.54), the first metatarsal (P=0.004,T=9.87) and the first arch of the right foot in comparison to the normal foot population. Compared with the normal foot population, the first metatarsal (P=0.004, T = 9.087) and the arch (P=0.001, T=128.35) were lower than those of the normal foot population (P <0.05);there was a significant positive correlation (P=0.001, T=0.001, T=0.001, T=128.35) between plantar sensations at the arch position of the left and right feet in the flatfooted group and plantar pressures. positive correlation between plantar sensation and plantar pressure in the left and right arch positions of the flatfoot group (P=0.012,R=0.500), (P=0.021,R=0.341); Conclusion: The pressure impulse of the arch and medial plantar area of the flat foot population increases, and the sensory sensitivity threshold of the first metatarsal bone, first metatarsal bone, and arch area of the plantar area is lower; At the same time, analyzing the correlation between plantar pressure and plantar sensation, it was found that there is a significant correlation between arch plantar sensation and plantar pressure in people with flat feet. The greater the impulse load of arch plantar pressure, the lower the threshold of plantar sensation;