For analysing the sole pressure distribution in the congenital dislocation of hip jont, we employedthe sole- pressure-distribution-video-image- system designed by the authors to messure thedynamic sole pressure in bilateral feet standing phase of a gait of the 7 patients with unilateralcongenital dislocation of the hip. By auto-pairing-control and statistical student's T testing, theresults showed: there are significant difference (p<0.05), in time, sole pressure, sole-pressure-timeintegrals in standing phase in diseased limb compared with the normal limb. The differences areclosely related to the pathophysiologic changes of the congenital dislocated hip joint. Due to theshortage of the limb and the dysfunction of the musculus gluteus medius caused by the dislocatedhip joint, the diseased limb compensate to and pathologically reach a new balanced state with thecontralateral normal one. By assessing the sole pressure, more knowledge of the congenitaldislocation of hip joint will be obtained to be a quantified index for assessing and evaluating theeffect of operation at the aspect of biomechanics.