What is the push service in Android phones? It always starts backstage. Can you delete this program?

This should be able to distinguish which program is doing the push service. If the software you installed is pushing, you can delete it by deleting the software, but if it is the software that comes with the mobile phone or the push service of the mobile phone system, it can only be solved by Root. If you buy a brand-name machine such as China Genmeng or HTC, Moto and Samsung, I suggest you find the official customer service to solve it. If it's a cottage, I suggest you forget it. You can use Zhuodashi or 360.