To provide a sealed letter for delivering a non-contact IC card in a stable state, preventing data recorded in the non-contact IC card from being altered.

The sealed letter 21 for delivering non-contact IC card is prepared by piling an electromagnetic shield sheet 5 made of an electromagnetic shield material as an upper envelope paper 3 and a lower envelope paper 4 and closing three sides of piled the upper envelope paper 3 and the lower envelope paper 4 and remaining one side open, wherein the non-contact IC card 10, which can be cut off by a perforation 9, is partitioned and formed on the piled lower envelope paper 4, the electromagnetic shield sheet 5 and a sealing section 15 provided on the open side is coated with an adhesive 14 for sealing to be sealed.