Regarding the weighty role of wars on the formulation of mankind's life history, the investigation of the effects and consequences of wars on the people's social life is of great importance for obtaining an exact and inclusive knowledge of the social history. Taking a descriptive-analytical approach and relying on first-hand resources and reliable research, the present paper thus aimed at investigating the effects and consequences of the wars on people's social life during the Muzaffarids (713-795 AH). The findings indicate that factors such as deranged military and political atmosphere of the eight century AH, rivalry of members of the Muzaffarids over power, challenges of the Muzaffarids with peripheral local sates, and the attacks of some tribes on the Muzaffarids led to the emergence and continuation of numerous domestic and foreign wars in this era. These wars had considerable impacts and consequences on people's social life within the Muzaffarid territory including massacre, population reduction, looting and destruction, economic effects such as increased poverty and starvation, unemployment, depression, income detraction, moral degradation, decline of cultural values, distressing thought, disappointment and despair of people, growth of Sufism, increasing interest in Sufi khanqahs, flourishing fatalism and as a result weakening of philosophical foundations and the growth of superstitions.