The utility model relates to an automatic lifting rope removal device for aloft work. The top of a gravity rod casing rack is fixed at the bottom of a lifting hook; an inner cavity of the gravity rod casing rack is connected with a circular handle gravity rod in an inserted manner; the lower end of the circular handle gravity rod is connected with a gravity rod stop block; the upper end of the gravity rod casing rack is fixedly connected with a horizontal support; the horizontal support protrudes to the left far away from a head of the lifting hook; a vertical support is fixedly arranged at the left end head of the horizontal support; the upper part of the vertical support is connected with a saddle rack; the saddle rack protrudes from the two sides of a side arc of the lifting hook into the lifting hook in a horizontal direction; the end heads of the saddle rack are connected by a saddle rack shaft; two shaft ends of the saddle rack shaft are articulated with the two end heads of a U-shaped rotating rod; a head arc of the lifting hook is sleeved with a closed end of the U-shaped rotating rod; one side end head of the U-shaped rotating rod is fixedly connected with a pull rod; the pull rod upwarps and is perpendicular to a root of the U-shaped rotating rod; a free end of the pull rod is connected with a pull rod tow rope; and the lower end of the pull rod tow rope is connected with the top of the circular handle gravity rod. The device can eject a steel wire rope while a user is not required to climb a derrick.