A floss-type tooth cleaning device (1, 2, 3), configured to clean an interdental space in an oral cavity after being wound with a bare-wire dental floss, the floss-type tooth cleaning device (1, 2, 3) comprising: a grip portion (11, 211); a bracket portion (12, 212, 31)connected with the grip portion (11, 211), the bracket portion (12, 212, 31) being formed with a first floss groove, a second floss groove, and a tooth cleaning portion being hollow and formed between the first floss groove and the second floss groove; and a floss positioning portion (13, 32) disposed on a plane of the bracket portion (12, 212, 31), the floss positioning portion (13, 32) being configured to allow an initial end and a final end of the bare-wire dental floss to be wound and fixed thereon, the floss positioning portion (13, 32) comprises a cylinder (131, 213, 321) and a position limiting cap (132, 24, 322); characterised in that the floss-type tooth cleaning device further comprises a first sheet, a lower portion of the first sheet being the grip portion; a second sheet formed with a first through hole; a third sheet formed with a second through hole; wherein an upper portion opposite to the lower portion of the first sheet, the second sheet and the third sheet together form the bracket portion (212, 31), when assembling, the cylinder (213, 321) is inserted through the second through hole of the third sheet and the first through hole of the second sheet, such that the first sheet, the third sheet and the second sheet are fixed and assembled with each other; wherein a size of the third sheet is smaller than that of the first sheet and the second sheet, such that a floss groove is formed around the third sheet and concaved between the first sheet and the second sheet, the floss groove comprises the first floss groove and the second floss groove and is for allowing the bare-wire dental floss to pass through. a grip portion (11, 211); a bracket portion (12, 212, 31)connected with the grip portion (11, 211), the bracket portion (12, 212, 31) being formed with a first floss groove, a second floss groove, and a tooth cleaning portion being hollow and formed between the first floss groove and the second floss groove; and a floss positioning portion (13, 32) disposed on a plane of the bracket portion (12, 212, 31), the floss positioning portion (13, 32) being configured to allow an initial end and a final end of the bare-wire dental floss to be wound and fixed thereon, the floss positioning portion (13, 32) comprises a cylinder (131, 213, 321) and a position limiting cap (132, 24, 322); characterised in that the floss-type tooth cleaning device further comprises a first sheet, a lower portion of the first sheet being the grip portion; a second sheet formed with a first through hole; a third sheet formed with a second through hole; wherein an upper portion opposite to the lower portion of the first sheet, the second sheet and the third sheet together form the bracket portion (212, 31), when assembling, the cylinder (213, 321) is inserted through the second through hole of the third sheet and the first through hole of the second sheet, such that the first sheet, the third sheet and the second sheet are fixed and assembled with each other; wherein a size of the third sheet is smaller than that of the first sheet and the second sheet, such that a floss groove is formed around the third sheet and concaved between the first sheet and the second sheet, the floss groove comprises the first floss groove and the second floss groove and is for allowing the bare-wire dental floss to pass through.