李白（701-762）流放夜郎時期的詩歌，向來少有人問津，或許因為這是詩人生命中的缺憾，所以後人談論李白生平時，往往對其此時的作品視而不見。流放夜郎是李白人生的一個終結，在面對充滿絕望的遙遙無期的未來時，是怎樣的信念支持著李白走向前途，他此間的生命情調如何？本文透過考察李白流放夜郎的始末與過程，探尋李白此時詩歌所反映的生命情調，發現正與主導其一生的積極樂觀精神相呼應，表現出在困境中的自信。

Poetries made by LI Bai (701-762) during his exile period in Yelang are always far less interested by people. Probably this is because these poetries are considered regrets in the poet's life, people often turn a blind eye on such works. Being exiled in Yelang can be said an end of LI Bai's life. While facing such hopeless and unforeseeable future, what kind of faith supported LI Bai to keep going forward? And what was his life sentiment at this time? By investigating the cause and course of LI Bai's exile in Yelang, this essay searched the life sentiments reflected in LI Bai's poetries made during this period and found such sentiments just responded to LI Bai's positive and optimistic spirits and showed his self-confidence in the difficult time.