I phone 7 Touch ID it’s not work

Start here:--> If Touch ID isn't working on your iPhone or iPad – Apple Support

If the issue persists, make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> Apple – Location Selector. After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.

Sorry to hear you're experiencing a problem with your iPhone 7's Touch ID sensor.

Check out this article, it goes in-depth on troubleshooting. If Touch ID isn't working on your iPhone or iPad - Apple Support

If that article doesn't fix the problem, take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support.