I am Egyptian doctor. I got a work permit and an invitation for my family. what i need to get visa?

Except the invitation and work permit, you need your passport, passport copy, application form, and recently-taken half-length photo.

Do you apply S type for your family so that they can go there together with you? If yes, you also need to show the kinship certificate as well as their basic application documents, like passport, passport copy, application form and recent photo.