The present invention relates to a plantar pressure analysis and insole pad selection system which detects the plantar pressure during walking and standing, detects the plantar pressure by section of the sole such as a heel part, a transverse arch part, and a longitudinal arch part by dividing the sole to the left and the right part based on the central line of the sole, and selects an insole pad depending on the plantar pressure by section of the sole. According to the present invention, the operation method of the plantar pressure analysis and insole pad selection system includes: an insole setting screen synchronization step of adjusting the size and the direction of an insole setting screen and overlapping the insole setting screen on the plantar pressure image of an examinee an insole pad data extraction step of extracting insole pad data including the size of an insole pad and a wedge from the overlapped image of the insole setting screen and the plantar pressure image from the insole setting screen synchronization step and an insole pad stock status output step of outputting whether the insole pad required by the insole pad data, extracted in the insole pad data extraction step, is in stock in a store.COPYRIGHT KIPO 2014[Reference numerals] (AA) Start (BB) End (S110) Initialize (S120) Input the identification data of an examinee (S130) Activate a pressure sensor (S140) Normally operating? (S160) Detect the plantar pressure (S170) Store the plantar pressure and display the plantar pressure with colors (S180) Detect, store, and display the pressure data by plantar section (S190) Additional plantar pressure detected? (S200) Select a representative value from the plantar pressure data (S210) Analyze the plantar pressure of the left and the right foot (S220) Synchronize an insole setting screen to the plantar pressure image (S230) Extract insole pad data (S240) Display whether the insole pad is in stock본 발명은 정지시와 보행시의 족저압을 검출하되, 발바닥의 중심선으로 좌우로 양분되되, 발뒤꿈치부, 횡아치부,