Obesity is a kind of metabolic disorder affected by many factors such as diet, environment and heredity. Besides weight gain, it may also lead to a series of complications such as diabetes, hypertension, hyperlipidemia and heart disease. In order to further study the obesity mechanism and evaluate related therapeutic drugs, GemPharmatech has developed a series of obesity mouse models, including diet-induced obesity model and spontaneous obesity model caused by gene mutation, and can provide drug efficacy evaluation services based on these models.