The invention belongs to the field of 
petroleum drilling and production, and in particular relates to a 
cutting tool for a rotating particle jet 
pipe string, which includes a pressure cap, a support ring, a centralizing blade, a gland, a filter screen, a disc spring, a rotating outer cylinder, a friction disc, a centralizing bearing, a card  Rings, thrust bearings, compression springs, central shafts, 
nozzle bodies, hard 
alloy nozzles, etc., by adding particles to the pumped 
working fluid, using the rotating particle jet 
pipe string 
cutting tool to achieve 
filtration of particles and large-
diameter particles in the fluid  Purify, and straighten the tool through the straightening blade, spray the rotating particle jet downhole, realize the 360° high-efficiency 
cutting of the downhole 
pipe string, and not be limited by special conditions such as small pipe 
diameter and deformed pipe, effectively improve the cutting efficiency of complex downhole pipe strings, reduce  job cost.