The present invention provides a dental floss improved structure comprising a handle, a bottom support bar, a front support bar, a rear support bar and a cross floss set. The handle has a rod shape, and the bottom support rod is connected to one end of the handle, the bottom support rod is provided with a first connecting portion and a second connecting portion； the front support rod is connected to the first connecting portion, and the front supporting rod is One connecting end is provided with two front connecting points； the rear supporting rod is connected to the second connecting portion, and one of the second connecting ends of the rear supporting rod is provided with two rear connecting points. The cross floss set is connected by the two floss lines to the two front connection points and the two rear connection points. The first connection end and the second connection end have a length to width ratio of 1:1.3 to 1.5, and the first connection end to the first connection portion is curved and tapered, and the second connection end is The second connecting portion is tapered in an arc shape.本創作提供一種牙線棒改良構造，其包含一握柄、一底支撐桿、一前支撐桿、一後支撐桿及一交叉牙線組。該握柄呈桿狀，底支撐桿連接於握柄的一端，該底支撐桿設有一第一連接部及一第二連接部；前支撐桿連接於第一連接部，前支撐桿之一第一連接端設有二前連接點；後支撐桿連接於第二連接部，後支撐桿之一第二連接端設有二後連接點。該交叉牙線組由二條牙線交叉的連接於該二前連接點及該二後連接點。其特徵在於該第一連接端及該第二連接端的斷面的長寬比例為1：1.3~1.5，且該第一連接端至該第一連接部呈弧形漸縮，該第二連接端至該第二連接部呈弧形漸縮。
