The invention relates to a tattoo positioning
simulation system and method for radiotherapy, the
system comprises a positioning driving mechanism and a tattoo mechanism, a driving module drives the tattoo mechanism to move to a tattoo positioning position, and the tattoo mechanism comprises a driving motor, a bearing shell, a cylindrical
cam, a gripper, a tattoo pen
assembly and a fixing frame; the driving motor is arranged on the fixing frame, the cylindrical
cam is rotatably installed on a telescopic shaft of the driving motor, the gripper is fixed to the side, close to the tattoo pen
assembly, of the cylindrical
cam, and the bearing shell covers the outer side of the cylindrical cam and is used for adjusting the gripper to rotate by a preset angle in each telescopic period of an output shaft of the driving motor; the tattooing pen
assembly comprises a plurality of tattooing pens, the tattooing pens are evenly distributed on the periphery of the cylindrical cam, the tattooing pens are parallel to the telescopic direction of the output shaft of the driving motor, and the gripper is movably connected with the tattooing pens and used for driving the tattooing pens. Compared with the prior art, the tattooing device has the advantages of high tattooing precision, convenience in operation and the like.