There's two types of social security which are Social Security Disability and Social Security that you get when you retire.
For social Security Disability you can earn from $500.00 to $1,000.00 per month above your social security disability payments before your benefits are reduced or cut off.
For social security payments that you get when you retire if you collect social security before full retirement age then you can earn $1,400.00 per month before your retirement benefits are reduced.
However if you're at full retirement age you can earn any amount you like and still work full time if you want too and still collect your social security benefits.