1. Homesick poems are poems with the theme of missing relatives or missing the motherland. The characteristic is to express the longing of the homeless people, with a lingering, sad and heavy tone;
2. Farewell is It mostly expresses farewell, cherishes blessings, and is written when parting with others;
3. Frontier poems were written by soldiers on the desolate and plain frontier, expressing homesickness, patriotism, and unfulfilled ambitions, or the desire to kill the enemy. The military power is high and the language is bold and solemn.