L want to include wife and a child in the application of asylum,should l submit five package?Is that mean five copies of I589

One completed I-589. You should speak with an attorney before you turn anything in. If you hire an attorney, your attorney can go over your application to see if you meet the LEGAL STANDARD of asylum, which I assume you don't know, submit documents or declarations, attend the interview and make arguments after the interview which can make or break a tough case. You should speak to an immigration lawyer ASAP.

Depends on where your wife and child are physically located.

you will need to prepare one application and include your entire family in it, then for filing purposes you must submit the original plus two copies for your own case and one extra copy for each additional dependent. so 5 total is required.