This is designed to be pet hair cutting device is started, the inlet of the vacuum suction device 101 ( 102) and includes a body 100 that is connected to one side of the fitting in which the bellows-type connector 103, the other side of the first connecting portion 110 of the body 100 is further provided in the body (100) a first connection portion 110 and the connection is a cutting member 200 is further provided doedoe, the cutting member 200 is the second connection portion 211 has one side that is connected to the first connection portion 110 of the body 100, and the other side having a third connection portion 212 is provided with a motor provided in the inlet portion 213 and for supplying power to the internal motor 214 and the motor 214, the incoming to the motor inlet 213, power supply 215 is provided and the housing unit 210 is provided with switches for electrically connecting the power supply 215 and the motor 214, 216 is exposed to the outside And a fixing rib 220 for fixing the connection to the housing part 210 and the motor inlet (213) The motor shaft (214a) of the fourth connection portion 231 is provided on one side and the other side of the fifth connecting portion 232 is provided, and the motor 214 is connected to the third connecting portion 212 of the housing 210 a second engaging surface corresponding to a plurality of first engaging surface (233a) of the rotating part 233 and the rotation unit 233 is connected to the inner surface is made of a plurality of first engaging surface (233a) (235a) is provided on the outer surface rotating cutting blade having an interlocking portion 235 and the fitting fixed and rotary cutting blade 241 to a rotary shaft 234 of the interworking unit 235 to be fitted and the rotating shaft 234 is extended in the rotation unit 233 (240) and brought into close contact with the rotating cutting blade 240 is fixed to a cutting blade 251 which is provided with a fixed cutting blade 250 and the fixed cutting blade (250) c
