Rhyme is one of the factors influencing the aesthetic creation, and is one of the components of the compilation of the poetry, which has a prominent position in Persian poetry, and the Persian poets have long been concerned with its application. As the Persian poetry evolves, the application of the rhyme becomes more visible and the poets have gone through a variety of words. Among those that types of rhyme play a major role in the poetry of his poetry, is Sultan Walad, who has used a variety of words in rhyme position in his lyrics. This research, with a text-oriented approach, and from the angle of statistics deals with the types of rhyme and their functions in Sultan-Walad’s lyrics; thus the rhymed and non- rhymed poems and the various types of rhyme in the lyrics of the poet, which include a considerable amount of his Diwan were studied and finally It was found that the his rhymed lyrics are much more than non-rhymed lyrics, and the frequency of all kinds of rhymes also shows that the verbal rhyme are the most frequent type of rhymes in the sultan Walad's lyrics. On the other hand, the functions of rhyme in his lyrics were also investigated from the musical, inductive and rhetorical points of and we concluded that the poet has used the rhyme for his purposes, including: aestheticizing, expressing his thoughts, and reflecting his own feelings and ...in his poetry.