my i phone 6 does not respond when i touching screen and when i restart it the same problem again,, please help me

Greetings 5elzz,

Thanks for using the Apple Support Communities!

I understand from your question that the touchscreen on your iPhone isn’t responding the way you expect it to. I also know that situations like this can be very frustrating, but we are here to help.

To begin troubleshooting, I would suggest working through the Check your touchscreen section from the following article.

Check your touchscreen

Make sure that your hands are clean and dry, then try these steps:

1. If you have a case or screen protector on your device, try removing it.
2. Clean the screen with a soft, slightly damp, lint-free cloth.
3. Unplug your device.
4. Restart your device. If you can't restart it, you can force restart your device.

If your touchscreen still doesn't respond like it should, contact Apple Support or take your device to an Apple Retail Store or Apple Authorized Service Provider.

If the screen on your iPhone, iPad, or iPod touch doesn't respond to touch - Apple Support

Have a great day!