On the basis of the traditional laser precision machining technologies for metal heart stents, a femtoseconds(fs) laser precision machining technology for a degradable heart stent was explored. By using the ultra-short pulse and ultra high peak power of the fs laser, the laser precision machining was implemented for the degradable heart stent made from the polylactic acid (PLA). A chair shaped bushing was designed to stabilize the laser focal spot position and the best bushing from focal precision machining was obtained to match with fs laser machining. By adjusting technological parameters, the shortcomings of the cutting edge carbonization caused by the characteristics of the material itself and the lower machining precision due to the unstable defocusing and focal spot position were overcome, and a nonmetal degradable heart stent method in a no heat precision machining was proposed. Finally, the feasibility of fs laser with chair-shaped bushing to machine a nonmetallic stent was described, the best machining parameters were determined, and a biodegradable stent sample without heat injury trimming and with a smooth band width consistency of ± 6 μ m was machined successfully.