Anyone could tell me how to increase the power of my punches?

Question

And no mentioning of Push-ups or weights or hitting something hard.I`m already doing those stuff.I`d appreciate new info.

Answer 1

the power for your punches come from the twisting of your hips when you pivot your feet. power comes from down up. your arms are simply an extension of this. when you are punching the heavy bag make note of this and intensify your pivoting and hip movement. with practice you will get stronger punches

Answer 2

Punching power is all a matter of technique.  Think of it like a golf swing- Tiger Woods will out-drive Brock Lesner every single time.  Make sure that your hips turn, your punches take the shortest path to their target, and that your weight shifts along your feet.  For that matter, punching power isn't the end all and be all of boxing.  Quick hands, good placement, long flurries and good defense can be a much bigger help in an actual boxing match.  Because it's all technique, it's very hard to give advice over the internet.  Find someone that know what they're doing and have them watch you do a couple rounds on the heavy bag.