Nima’s free meter is as the same as traditional AROOZ meter and dividable with the retention of quality of traditional AROOZ and the probability of change in it’s quantity. It can be considered as new form and more complete than the traditional Persian form of poems which is accompanied by innovation in its rhyme and meter.The difference between free poems from traditional ones is the variety of half – verse, written form and the structuring which is formed from combination and inspirathon of Mostazad, Mosammat, Bahre tavil, Tarkib band and Tarjie band.Ahmad Shamlou is the first Nima’s follower and learners. He didn’t agree with Nima on AROOZ and after a sheer imitating from Nima’s free poems and also after being petrified Nima, he made himself free from traditional AROOZ meter and free from Afaeil.Shamlou considered the meter as an external fact, forsed and adjunct factor. He believed in type of music as a nature and inseperable factor from the poem, s structure and he replaced AROOZi meter by a type of rhythms and also by using different internal and side rhythms and also by spontaneous application of words.