This utility model relates to the field of dresses and discloses a
waist pleated structure and a sleeveless dress, including a front piece (1) and a back piece (2). The front piece (1) includes a
front neck piece (11), a front chest piece (12), a front
waist piece (13), and a front hem piece (14) connected from top to bottom. A front extension piece (15) is provided on one side of the front
waist piece (13). The front waist piece (13) is separated from the front chest piece (12) and the front hem piece (14) by an upper front
waistline (16) and a lower front
waistline (17). The upper front
waistline (16) and the lower front waistline (17) extend to both ends of the front extension piece (15). Several movable pleats (3) are provided on the front extension piece (15). The waist pleated structure forms a multi-layered pleated structure at the waist of the dress, which covers the waist and
abdomen, thereby achieving a slimming effect and highlighting the wearer's curves, making it beautiful and elegant.