This study examined characteristics among 131 infants who were born at three hospitals affiliated with Catholic University. Those infants were very low birth weight infants (VLBWI ). Data were gathered through review of medical records between 1990 to 1993. The results were as follows : 1. Regarding the birth weight, 72.6％ were between 1000 gm to 1500 gm and 27.4% were below 1000gm. Of the VLBWI, 27.5% had gestational age of 29-30 weeks and 22. lof had gestational age of 26 weeks and below. The birth weight of them was significantly correlated with their gestational age. 2. Most of VLBWI had been hospitalized for more than 30 days and particulaly those who were between 1100-1400gm had been hospitalized more than 60 days. And the number of clinical problem was the most influencing factor on their discharge. 3. Of the VLBWI, 28.2% were given gavage feeding. 4. Jaundice appeared predominantly on the 3rd day after birth ,with 64.1％ of incidence rate. Of those infants developed jaundice, 92.9% received phototherapy 5. The most common problem after birth was respiratory conditions. And oxygen therapy was administered for 93.9% of the VLBWI while they were in the hospital.