What is the reason why Apple 6plus keeps shaking when taking pictures?

Maybe your hands aren't shaking. If the screen keeps shaking, the solution is:

Try to select Settings->; General-> reset->; "Reset Settings" to see if it can solve the problem. The user may need to reset the iPhone, but any data and photos of the user will not be deleted.

6P photography has no anti-shake function, so the hand becomes blurred when it shakes. If you don't shake your hands, you can go to Apple after-sales to see if there is anything wrong with your mobile phone and if you have turned on LIVE.

If it is still shaking, there should be something wrong with the camera. You can go to Apple for after-sales inspection.