The utility model discloses a portable the rechargeable polisher of preventing falling relates to polisher technical field, including the host computer body and sanding head, the host computer body including the main case and with the motor that the sanding head is connected, the lower part of main case are the hand held handle, and one side of hand held handle is run through and is provided with the protection ring, but is provided with the guide rope who is used for entangling the wrist at the afterbody of hand held handle. Adopt the utility model discloses, can prevent falling, intensity of labour in the time of not only can alleviateing detection person high altitude construction can also avoid the polisher to fall from the high altitude and take place the accident of hurting sb. 's feelings.