李贺作为中唐诗坛上的著名诗人，其诗歌创作深受个人经历与社会现实的影响，无论是在诗歌内容还是在创作特色上都与同时代其他诗人有所不同。其诗歌中的意象多描写鬼域与仙境中的事物，由此交织出一幅幅光怪陆离的画卷；其想象天马行空，无论是个人的悲惨经历还是自然界中常见的事物，在他敏锐的感知与极致的表达下，都给人以情理之中而又拍案叫绝的感受；其语言炼字往往追求表达的新奇和准确性，从而呈现出一种硬性化而又令人耳目一新的效果；其讽喻鞭辟入里，不但直刺社会弊病，给世人以警醒，而且包含着自身的期望与无奈。正是因为李贺在诗歌意象、想象等方面的苦心经营，才形成了别具一格的“长吉体”，展现出独具个人特色的奇峭冷艳的诗风，在中唐诗歌史上留下了浓墨重彩的一笔。

As a famous poet in the Mid-Tang Dynasty poetry circles, Li He's poetry creation is deeply influenced by personal experience and social reality, and is different from his contemporaries in terms of poetry content and creative characteristics. The imagery in his poems mostly describes things in the ghost domain and fairyland, thus weaving a bizarre picture; His imagination is flourishing, whether it is a personal tragic experience or a common thing in nature, under his keen perception and extreme expression, it gives people a reasonable and amazing feeling; Its linguistic refining often pursues novelty and accuracy of expression, thus presenting a hard and refreshing effect; Its allegory penetrates into it, not only piercing the ills of society and alerting the world, but also containing its own expectations and helplessness.It is precisely because of Li He's painstaking management in the imagery and imagination of poetry that a unique "Changgi style" has been formed, showing a strange and cold poetic style with Li He's personal characteristics, which has left a strong mark in the history of the Mid-Tang Dynasty.