The labour market in Indonesia is characterized by the existence of working children; however, to date there has been no collection of comprehensive data about the work characteristics of children aged 5 – 17 years. The first of its kind, the ICLS is a sub-sample and integrated in the 2009 National Labour Force Survey (Sakernas). Derived from the results of the listing of 2008, from 248 selected districts, 760 census blocks were selected using the same sampling technique. The questionnaire, manuals and basic concepts that were used in this survey were adopted from those recommended by the ILO’s International Programme on the Elimination of Child Labour (ILO-IPEC).