Windshield wiper rubber strip and windshield wiper

The invention discloses a windshield wiper rubber strip which comprises at least one rubber strip base body and at least one water wiping lip, the two sides of the rubber strip base body in the width direction are at least provided with installation grooves, and a transverse connecting strip is constructed below the installation grooves. The water wiping lip is arranged on the middle shaft portion of the transverse connecting strip in a swinging mode through a connecting strip, a large-diameter portion is formed at least on the side, adjacent to the connecting strip, of the water wiping lip, and the two sides, in the width direction, of the transverse connecting strip extend downwards to form two supporting strips respectively. At least when the deflection angle formed between the longitudinal central axis X of the water wiping lip and the longitudinal central axis Y of the transverse connecting strip is equal to alpha, the free end of one supporting strip abuts against the lower middle portion of the outer s