do Z visa is applied to accompaning spouse and kids?

Noor, your family can probably accompany you if their names are added on the invitation letter you get from a duly authorized unit. In this way, your family can apply for an S type and come with you. Besides, your family should provide the passport and its copy, the application form and a recently-taken bareheaded color photo, the relationship certificates (the notarized marriage certificate and birth certificate) and health examination report as well as a photocopy of your work Z type.