The invention discloses an extrahepatic 
vascular anastomosis stent and a conveying 
system thereof. The extrahepatic 
vascular anastomosis stent includes a 
stent body, a lead-in 
pipe, a soft 
pipe, a sleeve 
pipe, a 
metal pipe, a fixing device, a screw and a 
handle; the 
metal pipe is mounted at one end of the 
handle, the fixing device and the screw are mounted on the 
metal pipe, the screw is located between the 
handle and the fixing device, and the soft pipe is connected to the end, away from the handle, of the metal pipe; the lead-in pipe is mounted at the end, away from the metal pipe, of the soft pipe; the soft pipe is sleeved with the sleeve pipe, and the stent body is mounted on the lead-in pipe. By the adoption of the extrahepatic 
vascular anastomosis stent and the conveying 
system thereof, two blood vessels can be drawn close and anchored, and therefore the parallel blood vessels are subjected to 
anastomosis; the extrahepatic vascular 
anastomosis stent and the conveying 
system thereof are used for treating 
portal hypertension, history that 
portacaval and mesocaval shunt needs surgical 
laparotomy operations is changed so that the 
portacaval and mesocaval shunt can be conducted inan interventional and minimally invasive mode, pain of patients suffering from the 
portal hypertension is greatly reduced, and the 
therapeutic effect of the extrahepatic vascular 
anastomosis stent isimproved.