A manual craft cutting machine, comprising a housing, a press roller, a retainer, and a drive mechanism; the press roller being composed of a pair of a first press roller and a second press roller, the press rollers being disposed axially parallel to each other, two ends of the press roller forming a roller axle or extending in an axial direction of the press roller to form the roller axle, the roller axle being confined by the retainer; wherein the retainer comprises a positioning retainer and a sliding retainer, the positioning retainer is tightly connected with the housing and disposed at the two ends of the press roller, the positioning retainer is provided with a slide groove; the sliding retainer is inserted in the slide groove and movable along the slide groove, the sliding retainer comprises a first sliding retainer rotatably connected with the first press roller and a second sliding retainer rotatably connected with the second press roller; the drive mechanism includes a handle and a gear set; the gear set includes a speed reduction gear set and a constant speed gear set, the speed reduction gear set includes a handle gear and a speed reduction gear to mesh with each other, the handle gear is rotated along with the handle, the speed reduction gear is connected with the first press roller or the second press roller to drive one of the two press rollers to rotate; the constant speed gear set includes a pair of a first constant speed gear and a second constant speed gear to mesh with each other, the constant speed gears are fixed on the roller axles of the first press roller and the second press roller respectively, when one of the press rollers is driven by the speed reduction gear to rotate, the other press roller is driven by the first constant speed gear or the second constant speed gear to rotate at a constant speed; characterized in that the manual craft cutting machine further comprises a press roller spacing adjustment mechanism, the press roller spacing adjustment mechanism comprises a shift adjusting mechanism for adjusting a large spacing between the press rollers and a fine adjustment mechanism for adjusting a fine spacing between the press rollers, the shift adjustment mechanism drives the first sliding retainer to move along the slide groove, the fine adjustment mechanism drives the second sliding retainer to move along the slide groove. wherein the retainer comprises a positioning retainer and a sliding retainer, the positioning retainer is tightly connected with the housing and disposed at the two ends of the press roller, the positioning retainer is provided with a slide groove; the sliding retainer is inserted in the slide groove and movable along the slide groove, the sliding retainer comprises a first sliding retainer rotatably connected with the first press roller and a second sliding retainer rotatably connected with the second press roller; the drive mechanism includes a handle and a gear set; the gear set includes a speed reduction gear set and a constant speed gear set, the speed reduction gear set includes a handle gear and a speed reduction gear to mesh with each other, the handle gear is rotated along with the handle, the speed reduction gear is connected with the first press roller or the second press roller to drive one of the two press rollers to rotate; the constant speed gear set includes a pair of a first constant speed gear and a second constant speed gear to mesh with each other, the constant speed gears are fixed on the roller axles of the first press roller and the second press roller respectively, when one of the press rollers is driven by the speed reduction gear to rotate, the other press roller is driven by the first constant speed gear or the second constant speed gear to rotate at a constant speed; characterized in that the manual craft cutting machine further comprises a press roller spacing adjustment mechanism, the press roller spacing adjustment mechanism comprises a shift adjusting mechanism for adjusting a large spacing between the press rollers and a fine adjustment mechanism for adjusting a fine spacing between the press rollers, the shift adjustment mechanism drives the first sliding retainer to move along the slide groove, the fine adjustment mechanism drives the second sliding retainer to move along the slide groove.