Yes you can still claim your child as a dependent if he is receiving SS. Your child's Social Security benefits do NOT get entered on your tax return. Someday, if and when your child has other income---such as income from an after school job -- then the SSA1099 will go on his own tax return along with his other income. His SS benefits are not ever entered on your tax return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
