An intravascular implant device kit and a preparation method for implant device. The implant device is an intravascular stent locally covered with a film, which can be implanted in a blood vessel to treat vascular diseases such as aneurysm, particularly intracranial aneurysm. The implant device kit comprises a film material to be coated and a mesh stent, wherein the main component of the film material is alkyl cyanoacrylate. The implant device is directly filmed on site at the position of the aneurysm neck by the preparation method, which enables the aneurysm neck to be accurately and quickly blocked, the branch to be kept patent, and the space occupying effect to be obviously improved, and thus realizing a real cure of the aneurysm.
