There are two ways to add a card to Google Wallet: through the Wallet app or through your bank’s app or website. The first option is the most common.
On the main screen of the Wallet app, tap + Add to Wallet at the bottom. Select the type of card you want to add (payment, transport, points, etc.).
If you want to add a payment card, tap New credit or debit card. Scan your card with your camera or enter the details manually. After you’ve added the details, tap Save. Google might ask you to verify your payment method via email or text message.
Google Wallet will also now automatically add movie tickets and boarding passes
Additionally, some banks let you add your card to Google Wallet through their website or app. If your bank supports this option, you’ll see[Google ウォレットに追加]or[GPay に追加]A button will appear, tap it and follow the instructions.
If you want to add a transit or loyalty card, you’ll need to select it from a list (not all transit options and stores are available), and then you can log in to your transit or store account to connect your card.