The abstract of this research presents the structural deviation in the poetical language of Jalal Malaksha and analyze his poetical texts. Deviation is deviate of the rules of the language, but it does not mean that there is not any boundary for this deviation. Leech created a boundary between deviation and additional rules when he describes deviation. He believes that deviation is possible when the communication and expression is conceivable and the embodiment is acceptable to be expressed. Jala Malaksha attempted to write in a meaningful and effective way, in all his texts, structural deviation in the three levels of (phonology, morphology and syntax) is perceived, which each of them illustrated in a differ way. For example, phonological deviation in the bases of some texts that is a deletion of phoneme which the necessity of the texts is needed and the poet needs to embody it. Furthermore, Jalal Malaksha to establish invented texts and make a role on the reader, he applied language deviation in the level of word. So, he applied many deviations in the level of sentence such as (delete language elements and move the language elements) in the bases of some poetical texts, he could apply new and invented technique in the poetical texts.