An assisted stent delivery device (100) and a stent delivery method, for use in deploying a stent to a stent cavity of a stent delivery device. The assisted stent delivery device (100) comprises a hollow stent accommodation tube (1) having both ends communicated with each other, a stent insertion member (2) fixed to the rear end of the stent accommodation tube (1), and a stent push member (3) matching the stent insertion member (2). The stent insertion member (2) has a hollow inner cavity channel (20). The stent push member (3) comprises a loading connector (31) and a push tube (32) connected to the front of the loading connector (31). The outer diameter of the push tube (32) is equal to the minimum inner diameter of the inner cavity channel (20) of the stent insertion member (2). When the loading connector (31) controls the push tube (32) to insert into the inner cavity channel (20) of the stent insertion member (2), the push tube (32) can be inserted into the stent accommodation tube (1) while tightly attaching to the inner wall at the minimum inner diameter of the stent insertion member (2). The assisted stent delivery device (100) and the stent delivery method do not need to deploy a stent in a stent push device for a long period of time in advance, and can avoid the loss of inflation/dilation force due to that the stent is deployed in the stent push device for a long period of time in advance, such that the stent has an increased use duration and a good practical value.L'invention concerne un dispositif de pose d'endoprothèse assisté (100) et une méthode de pose d'endoprothèse, destinée à être utilisée pour déployer une endoprothèse dans une cavité d'endoprothèse d'un dispositif de pose d'endoprothèse. Le dispositif de pose d'endoprothèse assisté (100) comprend un tube de réception d'endoprothèse creux (1) ayant les deux extrémités en communication l'une avec l'autre, un élément d'insertion d'endoprothèse (2) fixé à l'extrémité arrière du tube de réception d'en
