A piercing device, suitable for piercing the upper film of a capsule containing a material suitable for being used for preparation of a beverage, including a first end, a central body, and a second end, the first end having an operating surface provided with a plurality of piercing spikes protruding from the operating surface, the device furthermore including disengagement members on the operating surface, for disengaging the capsule once the upper film of the capsule has been pierced, thereby preventing a capsule from remaining attached to the device for piercing.