The present study deals with imperative mood in Persian language based on prototype theory which is one of sub-theories of the cognitive linguistics approach. The research hypotheses are based on distinctions between the form and meaning components in the imperative mood and its distribution in the language corpus of contemporary literature. The aim of this paper is to describe and classify the criterion of the imperative mood in different language levels and beyond. According to the cognitive linguistics approach, language is part of a cognitive system and the syntactic structure of a language can't be studied separately, but all influential factors should be considered from different lingual aspects. The data analysis was carried out through descriptive and qualitative methods. It was found that the base of the verb has a high frequency in the corpus, but the form and meaning are different, with the meaning of imperative mood depending on the context. As a result, all language layers, forms and meanings in description and classification of the imperative mood should be taken into account to be analyzed cognitively.
