The invention relates to the technical field of mechanical mounting equipment and discloses a blind pin puller. The blind pin puller comprises a front pull rod, a chuck and a center screw. A through hole is formed in the middle of the front pull rod, the lower end of the front pull rod is a counter bore, the end part of the counter bore in the lower end is a cone-shaped horn mouth, the upper end of the front pull rod is a counter bore, the upper end of the chuck is a cone-shaped head, the lower end of the cylinder body of which is big on the lower side but small on the upper side, the upper end of the chuck is a screw hole while the lower end of the chuck is a pin pulling hole, an open slot is formed from a hole arm of the pin pulling hole to the lower end, the cone-shaped face of the cone-shaped head of the chuck is matched with the cone-shaped horn mouth of the front pull rod when the chuck is matched in the counter bore in the lower end, a distance is formed between the front end ofthe chuck and the bottom of the counter bore in the lower end of the front pull rod, the center screw is formed in the middle through hole of the front pull rod, the thread at the lower end of the center screw is matched with a screw hole in the upper end of the chuck, and the head of the center screw is located in the counter bore in the upper end of the front pull rod. The blind pin puller provided by the invention is simple and feasible and convenient to operate, and does not damage a product body and a pin in the pin pulling process.