PURPOSE: An anti-signal interference RFID card and sticker are provided to prevent the signal interference between RFID cards by inserting a thin card for blocking the signal interference between RFID cards into the gap of the cards. CONSTITUTION: A signal interference prevention card(1) comprises the electromagnetic wave absorption material and blocks an RFID signal. The signal interference prevention card has the same size and shape as an RFID card. The signal interference prevention card is positioned between the RFID cards and block the interference between the RFID cards.
