The invention discloses a 3D printing device and a 3D printing facility for preparing a cardiovascular stent, relates to the technical field of 3D printing and aims to solve the technical problems that existing 3D printing facilities for preparing the cardiovascular stent are all generally used for the large-scale batch production of the cardiovascular stent, and lack adaptability to an intractable case. The 3D printing device for preparing the stent, which is provided by the invention, comprises a drive, wherein the drive is connected with a rotating shaft; when the 3D printing device is in use, the drive is used for driving the rotating shaft to rotate; meanwhile, a 3D printing raw material sprayed on the rotating shaft can form the cardiovascular stent.