Disease early warning method and system based on big data

The embodiment of the invention provides a disease early warning method and system based on big data, and the method comprises the following steps: obtaining the actual body weight of a human body in real time, and building a coordinate system which takes day as a unit and takes the actual body weight as a variable according to the actual body weight of the human body; the height of the human body is obtained, the standard weight of the human body is calculated through a formula of (height cm-80) * 70%, and the standard weight is drawn in the coordinate system; and calculating a difference value between the actual body weight and the standard body weight every day, judging the health condition of the human body every day according to the difference value, and sending the coordinate system and the health condition to a mobile terminal by taking seven days as a cycle. According to the embodiment of the invention, the user can be reminded in time according to the change of the body weight and the difference betw