A carrier tape splicing device for connecting the ends of the first carrier tape and the second carrier tape, the first carrier tape and the second carrier tape are provided with a plurality of feed holes formed at a specified spacing in the long side direction, and the belt splicing device is characterized in that it is provided with a first positioning pin passing through the feed hole of the first carrier tape;

A second positioning pin arranged at a position separating the reference separation distance from the first positioning pin in the long side direction of the carrier tape and passing through the feed hole of the second carrier tape, and the reference separation distance is an integral multiple of the distance of the feed hole;

A cutter for cutting the overlapping ends of the first carrier belt and the second carrier belt positioned by the first positioning pin and the second positioning pin in a direction intersecting with the long side direction of the carrier belt; The positioning pin moving mechanism moves the first positioning pin relative to the second positioning pin in the long side direction of the carrier belt.

The positioning pin moving mechanism is composed of: before the tool cuts off the carrier belt on both sides, By reducing the spacing between the first positioning pin and the second positioning pin by a specified amount smaller than the spacing of the feed hole from the reference separation spacing, the first carrier belt is relatively moved towards the second carrier belt side, and after the tool cuts off the carrier belts on both sides, the spacing between the second positioning pin and the second positioning pin is restored to the reference separation spacing.