A yarn winding device that produces a conical package, comprising: a traverse guide adapted to traverse yarn to be wound into the package; a traverse driving section adapted to reciprocate the traverse guide with respect to a direction of a winding width of the package; a lead ratio setting section adapted to set a lead ratio as a set lead ratio, the lead ratio being a value of a ratio of traverse time of the traverse guide within a larger diameter region with respect to traverse time of the traverse guide within a smaller diameter region of the package, or a value of a ratio of traverse speed of the traverse guide within the smaller diameter region with respect to traverse speed of the traverse guide within the larger diameter region of the package; and a speed profile adjusting section adapted to adjust a speed profile of the traverse guide in at least one of the larger diameter region and the smaller diameter region of the package according to the set lead ratio set by the lead ratio setting section, characterized in that when the set lead ratio set by the lead ratio setting section is greater than 1.0, the speed profile adjusting section is adapted to adjust the speed profile for the smaller diameter region corresponding to the set lead ratio to a first smaller diameter region speed profile, and provided that a second smaller diameter region speed profile is the speed profile for the smaller diameter region corresponding to a reference lead ratio in which the lead ratio is 1.0, the speed profile adjusting section is adapted to adjust acceleration of the traverse guide in the first smaller diameter region speed profile to be at most acceleration of the traverse guide in the second smaller diameter region speed profile, and/or when the set lead ratio set by the lead ratio setting section is greater than 1.0, the speed profile adjusting section is adapted to adjust the speed profile for the larger diameter region corresponding to the set lead ratio to a first larger diameter region speed profile, and provided that a second larger diameter region speed profile is the speed profile of the larger diameter region corresponding to a reference lead ratio in which the lead ratio is 1.0, the speed profile adjusting section is adapted to adjust acceleration of the traverse guide in the first larger diameter region speed profile to be equal to or greater than acceleration of the traverse guide in the second larger diameter region speed profile. a traverse guide adapted to traverse yarn to be wound into the package; a traverse driving section adapted to reciprocate the traverse guide with respect to a direction of a winding width of the package; a lead ratio setting section adapted to set a lead ratio as a set lead ratio, the lead ratio being a value of a ratio of traverse time of the traverse guide within a larger diameter region with respect to traverse time of the traverse guide within a smaller diameter region of the package, or a value of a ratio of traverse speed of the traverse guide within the smaller diameter region with respect to traverse speed of the traverse guide within the larger diameter region of the package; and a speed profile adjusting section adapted to adjust a speed profile of the traverse guide in at least one of the larger diameter region and the smaller diameter region of the package according to the set lead ratio set by the lead ratio setting section, characterized in that when the set lead ratio set by the lead ratio setting section is greater than 1.0, the speed profile adjusting section is adapted to adjust the speed profile for the smaller diameter region corresponding to the set lead ratio to a first smaller diameter region speed profile, and provided that a second smaller diameter region speed profile is the speed profile for the smaller diameter region corresponding to a reference lead ratio in which the lead ratio is 1.0, the speed profile adjusting section is adapted to adjust acceleration of the traverse guide in the first smaller diameter region speed profile to be at most acceleration of the traverse guide in the second smaller diameter region speed profile, and/or when the set lead ratio set by the lead ratio setting section is greater than 1.0, the speed profile adjusting section is adapted to adjust the speed profile for the larger diameter region corresponding to the set lead ratio to a first larger diameter region speed profile, and provided that a second larger diameter region speed profile is the speed profile of the larger diameter region corresponding to a reference lead ratio in which the lead ratio is 1.0, the speed profile adjusting section is adapted to adjust acceleration of the traverse guide in the first larger diameter region speed profile to be equal to or greater than acceleration of the traverse guide in the second larger diameter region speed profile.