The prophet of God (peace and blessings of Allah be upon her), after thirteen years of propaganda in Mecca, migrated to Medina and they formed an Islamic government there. The Prophet in Mecca tried to guide the people and form an Islamic government but inevitably, due to the intensification of the persecution of the opposition, they migrated to Medina and formed an Islamic government there. The prophet Mohammad (peace and blessings of God be upon her) faced many wars in Medina that the aim of this research is examining the Prophet's communication methods in these wars. For this purpose, the historical book of Altabaghat, Sira al- Nabawiyyah (Ibne Hesham) and Tarikhe Yaghobi (The history of Yaghobi) are investigated through purposive sampling with qualitative content analysis that the results of them are included of six main articles that each of them is included of some subcategories. These six articles are included of Prophet's communication methods,  Features of the Prophet as the source of the message, how to deliver the message, observance of the principle of audience studies, how to respect human values and the Prophet's communication techniques at wars.