If you apply for a work permit, you usually need to enclose the documents below. Special rules and forms may apply in the case of certain occupations.
Check the Swedish Migration Agency website:
Swedish Migration Agency website
If you apply online, you attach the documents electronically. If you apply on a paper form, you have to bring all the requisite documents with you to the Embassy, together with the completed form.
You need:
If your family is accompanying you to Sweden, you can apply on their behalf in your own application.
If you use a paper form, or if the family will be applying at a later date, the family members are to use form no. 133011, Application for a permit for family members of employees, visiting researchers, athletes and self-employed persons.
Check on the Swedish Migration Agency website which documents you need to attach for your family.
Swedish Migration Agency website