The objective of this paper is to analyze the relation between poverty and fertility starting from the data of Demographic Health Survey (DHS) of Haiti of 2000. The concept of poverty is apprehended according to an approach relating to the concept of functionings or basic capabilities of Sen (1999) - non monetary poverty. The definition of fertility retained is the parity - an average number children whom a woman had preceding during the five years the survey. The principal conclusions of this study are the following. First, as in the case of many African countries, unlike the commonplace, the "poverty-fertility" relation is complex. Second, hence, we have to take the impact of other factors such as the residence place of the household into account in the analysis. The latter could be a very important factor of non monetary poverty, and hence influence the “poverty-fertility” relation by reducing the impact of poverty on the fertility. Third, this research needs to be continued in order to improve one’s knowledge of the “poverty-fertility” relations and, then, to help the authorities to better conceive the public policies in reproductive health