Crying is the first oral communication of babies. Babies express their feelings by crying before they learn how to express their feelings. They express their feelings of hunger, sleepy or pain by crying. Sometimes, however, it's hard to find out why a baby cries. This can certainly be frustrating or frightening for a caregiver, so we designed a baby crying classification system to categorize baby crying in this project. With this project we helped parents and nurses meet the needs of babies.