The invention discloses a fast foot shape collecting method and a customized shoe last forming technology. The method includes the steps of toe girth motion freeze-frame collecting, upper piece material extension testing, last body toe girth data designing and customized shoe last forming, wherein the process of toe girth motion freeze-frame collecting includes the steps of standing-posture foot shape toe girth collecting, heel-center-forward-shift foot shape toe girth collecting and suspended foot shape toe girth collecting. The method aims at achieving shoe last toe girth designing under theguidance of multiple groups of foot data through toe girth motion freeze-frame collecting, and achieving foot data collecting and material matching designing with a material extension testing method;by innovating the last body toe girth data designing method, the overall customized shoe last designing with foot shape and material performance measurement is improved, and thus the comfort of shoeproducts and the optimization of personalized customization are greatly improved.