Drastic climate change, air pollution, water pollution, infectious diseases, earthquakes and other natural disasters have been threatening human existence and life. Rapid economic development, technological progress, and the growing global population bring convenience to mankind, but also breed the risk of "uncertainty". The reset of the external environment characterized by uncertainty and ambiguity may lead to the interruption of the old consumption habits that are originally deeply rooted, and at the same time many new daily consumption habits will be born. By integrating relevant literature at home and abroad, it is found that existing studies have explored the impact of uncertain situations on individual consumption decisions from both theoretical analysis and empirical aspects, in which individual psychological factors play a mediating role. Finally, the existing research deficiencies and future research trends are pointed out, and reference are provided for related scholars.