In female addicts, pregnancy carries risks associated with lifestyles, modes of consumption and effect of drugs on the developing fetus. This investigation tried to determine the level of antenatal attachment in pregnant addicts, as well as assess the relationship between the number of nursing visits and held attendance of the preparation for childbirth, with the level of prenatal attachment. We conducted a correlational study (Fortin, 2009), applied to a single point. Regarding the level of prenatal attachment, and considering that the maximum value for scale is 80, pregnant drug users have an average of 53.53 (SD=24.10), a value above the average value of the scale, it emphasizes that these pregnant have a value of linking prenatal satisfactory. It was found that the greater the number of nurse consultations conducted surveillance of the pregnancy, the greater the level of prenatal attachment, noting also that pregnant addicts who attend the course in preparation for childbirth, have higher levels of binding prenatal care (p <0.05).