First, if the laid-off workers in your former enterprise are unemployed, they can participate in free training with the original and photocopy of the labor contract signed with the enterprise, the unemployment certificate issued by the employment bureau, two photos and the household registration book. Second, if you don't have a company, you can also take your unemployment certificate, two photos and your household registration book for free training. If it is a rural hukou, you can also participate in free training with the proof of working in the town labor security office.