My MacBook Pro suddenly shuts down

Hi everyone!

My macbook pro i think will going to kill me by every suddenly shuts down,

and i have no idea!

i read every pages and other asnwers about this problem but not help!

my battery is fine!

but it sometimes happen and in a day My macbook has around 10 or more suddenly shuts down!

and my macbook version is Sierra but i had this problem for El captain and Yosemite also!

can someone help me please?