During land expropriation, it is difficult to form a real antagonistic relationship between farmers and the local Government due to disparities, which means the confrontations between them are difficult to administer. The confrontation between both parties could lead to the distortion of the farmers' resisting logic, who are supposed to be in a vulnerable position. Hence, the farmers are not necessarily in a weak position; sometimes, they even have advantages compared with the local governments. Through the combination of Quiggin's rank-based expected utility theory and evolutionary game theory, this paper constructs a conflict-induced game mechanism Rank-Dependent Expected Utility Theory (RDEU) evolutionary game model and discusses the evolution law of strategic behavior of land-expropriated farmers and local governments under the influence of emotion. The software simulation results show that when the farmers at the weak side think that the probability of the government adopting the strong strategy is higher than a certain cut-off point, the farmers will use the weapon of the weak to release the signal that endangers the order and force the government to adopt a compromise strategy by utilizing authoritative preference for stability. Through the interaction of heterogeneous beliefs between farmers and the government, the game of land expropriation will form an evolutionary stable equilibrium.Sustainability 2020, 12, 3367 2 of 21 to non-agricultural uses, mainly through land acquisition by the state [7]. In addition, this kind of land expropriation with public interest is often strongly opposed by farmers and leads to sharp social contradictions [8]. It is also regarded by Upreti (2004) as farmers' struggle to change the unequal social relations of land [9]. The struggle between land expropriation and land-lost farmers has caused a series of social and economic problems in China, such as the fairness of land expropriation compensation, the conflict of farmland expropriation, and the sustainable livelihood of land-lost farmers [10][11][12][13]. Land expropriation has become a key issue affecting the stability of China's rural areas [14]. However, in these fierce conflicts of land expropriation, we can see that the logic of farmers is to use their own weak identity to fight against state institutions, hoping to meet their own political rights and win social sympathy and support at the same time [15].So, what is the significance of farmers' weak identity as a weapon in the game induced by the conflict of land expropriation? And how does it affect the game equilibrium induced by the conflict? These are problems worth studying.The weapon of the weak is defined as the kind of people who are in a relatively inferior position in psychology, physiology, ability, opportunity, and situation compared with other people in society. When their rights and interests are infringed, using their own symbols of the weak to fight for rights to get the attention of the media or the sympathy and support of social organizations is a way...