The utility model discloses an adjustable front buckle type sewing-free underwear with integrated mold cups and lower bands. Comprising an underwear body, the underwear body comprises two cups arranged on the front portion and further comprises a rear surrounding belt connecting the opposite outer side edges of the two cups into a whole, and the inner side edges, close to each other, of the two cups are connected through a front
fastener; each cup comprises an upper mold cup and a lower band which are distributed up and down; the inner side edges, close to each other, of the two lower supports extend oppositely and exceed the inner side edge of the upper mold cup to form an extension part; a front
fastener is fixed at a position where the two extension parts are close to each other; the two extending parts are connected to form a heart-shaped part; the lower band comprises an inner layer and a
surface layer which are connected in an inner-outer attached mode, and the
surface layer and the upper mold cup are of an integrally-formed structure. By adopting the design that the mold cup and the lower band are integrated, direct friction of stitches to
skin in a traditional sewing process is avoided, and the wearing comfort is improved. The extending parts effectively prolong the transverse adjusting distance of the lower parts on the two sides, so that a user can better grab the front
fastener for fastening when wearing the garment.