We use Yun (2003)'s decomposition in order to analyze the difference in probability terms of child labor for two ethnic groups Afro-Colombians and Non Afro-Colombians.We found this difference to be of 3,2%.Also, we found that 91,6% of the difference is explained by the so called characteristics effect and 8,4% by the coefficients effect.The most important socioeconomic characteristic at explaining the difference is the urban-rural condition, which explains 46%.Regarding the coefficients effect, we propose a model of labor discrimination as a possible explanation for the higher probability of child labor into the Afro-Colombian group.