You can claim your pension while you’re working, as long as you’ve reached:
State Pension age, if you’re claiming the State Pension
the age agreed with your pension provider, if it’s a personal pension or workplace pension
State Pension
If you delay (defer) taking your State Pension, you’ll get larger weekly payments when you do start taking it.
Workplace pension
If you have a workplace pension, reducing your working hours could affect how much you get - check with your employer.
Check what happens to your workplace pension if you continue working beyond the age when you can take it.