After the Sino-Japanese War, Lu decided to defend national musical traditions and make use of his deep knowledge of children's songs by returning to his fatherland.
呂泉生雖然所受的是西式音樂教育，所採用的教學方法亦屬西式，但他卻是位鄉土音樂的愛好者及民謠歌曲的傳薪人。中日戰爭爆發後，呂泉生返台，那時他深深覺得，音樂雖是聲音的藝術，具有超國家民族的普遍性，然而終究也有著它的民族地域性。