PROBLEM TO BE SOLVED: To safely and easily perform work such as pruning to a tall tree.SOLUTION: Safety belt attaching equipment comprises: a column 10 installed in the vicinity of the trunk M of a tree T a rope winding device 70 attached to the column 10 and a plurality of fixing devices 30 which combines the column 10 to the trunk M of the tree T at a plurality of parts in a length direction of the column 10, and fixes the column 10 to the trunk M of the tree T. The rope winding device 70 energizes a rope 75 to a direction winding the rope, drawably holds the rope 75, and has a lock function for preventing the rope 75 from drawing when at least predetermined force is added to the direction drawing the rope 75. The fixing device 30 comprises a column fixing part 40 fixed to the column 10, and a trunk fixing part 50 fixed to the trunk M of the tree T.