Many, but not all, Students and Child students can work. This depends on the type of student sponsor you have. Go to the register of Student sponsors and look at the Sponsor type and Status columns. When you have found your college or university, select the relevant option below to find out if you can work.
Working hours in term time must not exceed 10 or 20 a week, and you can work full time outside term time.
"Week" means any 7-day period starting on a Monday. Keep detailed records of your working hours. This is especially important if you work irregular hours and/or if you have more than one employer.
"Term time" means the period when your student sponsor expects you to be studying. "Outside term time" means any other time. For example, the period before your course starts and after it ends, and holidays (vacation). You can usually find term dates on your college's website or in your course information. You must provide this information to your employer.
Always check the information on your immigration document. If it says "No work", you must not work. If you think this is a mistake, you must get it corrected before you take any employment. See how to do this in Errors on 90-day vignette and Errors on BRP.
You can find full details in these Home Office publications:
An employer's guide to right to work checks
Home Office Student and Child student caseworker guidance