In their cultural notes in Sing Chinese
, Cindy Mao and Ma Baolin explain that "Little swallow" is taken from the movie "The Diary of a Nurse". It has become one of the most popular children's songs since the 1950's, when China was undergoing economic reconstruction. Today very few people know about the movie, but the song is still well-known. Many children's art groups continue to perform it on stage.
The lyrics are attributed to Wang Lu, Wang Yunjie and the music to Wang Yunjie.