Discrimination means that people treat people unequally in a certain defect, shortcoming, ability and appearance, so that they get different degrees of losses, which is often derogatory. From, Xue Qin Fucheng's Diary of the Four Kingdoms, February 21st, 17th year of Guangxu: "I respect my destiny, and I am a Chinese and foreign family without discrimination".

From the social point of view, discrimination is an emotional reaction and behavior between different interest groups, and discrimination is generally composed of two interest groups: the discriminator and the discriminated. In general, the discriminating party slanders, slanders, isolates or even hurts the discriminated party in words or actions for fear that the discriminated party will pose a threat or challenge to its status, rights, interests, habits and culture. Discrimination is actually that one party who discriminates is looking for unspeakable reasons to let unreasonable, legal, unfair and unjust things continue. Achieve the purpose of maintaining the status, rights, interests, habits and culture of the discriminating party.