Objective To find out problems in feeding the preterm infant during the food conversion period. Methods A total of 268 preterm infants at 12-18 months corrected age (including 60 high-risk, 55 medium-risk and 153 low-risk) and 117 term infants were followed up using a self-designed feeding questionnaire. Results Exclusive breastfeeding rate was 35.07% in the preterm infant and 56.41% in the term, showing significant difference between them (P<0.01). Only 9.13% of the breastfed preterm was provided with human milk fortifier. The mean time to starting complementary food was (4.87±1.39) months in the preterm, earlier than the term (5.85±1.10 months, P<0.01). Animal source food was the latest introduced type of food in the preterm, with the mean time being (7.88±2.66) months. Nearly eighty percent (77.24%) of the preterm were fed with liquid food after introducing muddy food, 24.63% fed with granular food later than 9 months corrected age, and 36.94% introduced band-shape food later than 12 months corrected age. Conclusion The rates of exclusive breastfeeding and human milk fortifier usage were low in the preterm infant. Complementary food was introduced earlier in the preterm than the term, but animal source food was added later in the preterm. Introduction and transformation of food texture were inappropriate. On-site breastfeeding guidance andfood transformation guidance with models or practice should be provided to achieve scientific feeding of the preterm.