This paper aims to seek the determinants of hours supplied of child labor in Cambodia. On the
basic of simple theoretical and empirical model building from existing literatures, we have estimated the
latent decision of parents on hours supplied of their children. Because this hours supplied are censored at
zero hours and depend on the enrolment status of each individual child, therefore, we use simultaneous
tobit and probit to find the determinants of hours supplied and enrolment of children by the Maximum
Likelihood estimate. Given a structure of our model, it allows us to estimate marginal effects of latent
status of children which is rarely discussed in literature and it enable us to see dynamics of child labor in
Cambodia. We found that only after completing primary education, thus parents’ education has impact on
the probability of child’s schooling and reduce hours worked of the child. Increasing household’s income
does increase the human capital formation of the child. Importantly child labor (except worse form of child
labor) does help increasing human capital formation of the child in the context of developing economy like
Cambodia.