It is possible for a third person (as myself/ father) to bring and present my son's documents for application?

Yes, it is ok for someone else to present his application. But be note that, his application should be submitted to the CVASC in Paris, you need to make an appointment online first, then go on the appointed date. For detailed requirements and procedure, you can refer to http://www.visaforchina.org/PAR_FR/visainstruction/249653.shtml