The invention discloses an end part improving structure of a boneless windshield wiper, comprising a windshield wiper rubber strip, an elastic supporting part and an end buckle; the windshield wiper rubber strip is sleeved on the elastic supporting part, and both ends are fixed through the end buckle; the elastic supporting part consists of two elastic steel pieces, and a gap for making the windshield wiper rubber strip cross through is reserved between two elastic steel pieces; end parts of the two elastic steel pieces are welded with a connecting piece, and the middle part of the connecting piece is upwards raised to form a leaving space for making the windshield wiper rubber strip cross through; a leaving gap for making the end buckle pass through is reserved between the outside of the connecting piece and the outside edge of the elastic steel piece, and the outside of the elastic steel piece on a predetermined position is further shaped with a positioning buckle groove; inner and outer ends of the end buckle are an opening end and a sealing end; the bottom part of the end buckle is provided with a holding cavity for the opening, and two positioning steps are extended at the opening of the holding cavity; the upper parts of the positioning buckle are provided with concaves matched with the width of the leaving space, and positioning buckle platforms are arranged in the sunken; when the end buckle is installed in place, the positioning buckle platforms are buckled in the positioning buckle grooves of the elastic steel piece.