Eating disorder is a kind of mental disorder defined by abnormal eating habits that negatively affect a person's physical and/or mental health. Someone says the patients are controlled by calories. Someone says they are extra. Binge eating disorder (BED), as a kind of eating disorder, is a severe, life-threatening, and treatable eating disorder characterized by recurrent episodes of eating large quantities of food (often very quickly and to the point of discomfort). If we search relative keywords on Chinese social media, there are countless people struggling in negative emotions brought by BED. Some of them are with relatively light influence: they might only have negative feelings after one or two eatings. Some are more severe: they do exercises as crazy to compensate for their eating. And some’s life is being threatened: they have been repeated the process of eating and vomiting so many times that their bodies are significantly damaged. However, because of the lack of attention to the whole mental health in China, many patients don’t have the awareness or resources to get professional medical treatment, so they only try to seek help on social media.