A method for monitoring an epidemic disease in a piggery, comprising obtaining, using a parameter obtaining module, a historical food intake amount, historical environmental parameters, a historical health state and a historical epidemic disease state of a live pig, wherein the historical environmental parameters comprise a temperature, a humidity, and concentration of gas in the air; establishing using a piggery monitoring model establishment module, a piggery monitoring model by taking the historical food intake amount and the historical environmental parameters as an input and the historical health state and the historical epidemic disease state as an output; determining by means of a first current state determination module, a first current state of the live pig according to the piggery monitoring model, wherein the first current state comprises a healthy state and an epidemic disease state; and monitoring, using a monitoring module, a monitored piggery according to the first current state wherein the determining a first current state of the live pig according to the piggery monitoring model specifically comprises: obtaining a current food intake amount of the live pig within a period of time threshold range; determining whether the current food intake amount is in a downtrend within the time threshold range to obtain a first determining result; if the first determining result indicates that the current food intake amount is in the downtrend within the time threshold range, obtaining current environmental parameters of the monitored piggery; determining whether the current environmental parameters and the historical environmental parameters are within an environmental-parameter similarity threshold range to obtain a second determining result; and if the second determining result indicates that the current environmental parameters and the historical environmental parameters are within the environmental-parameter similarity threshold range, determining, by taking the current food intake amount and the current environmental parameters as an input, the first current state of the live pig according to the piggery monitoring model. a historical food intake amount, historical environmental parameters, a historical health state and a historical epidemic disease state of a live pig, wherein the historical environmental parameters comprise a temperature, a humidity, and concentration of gas in the air; establishing using a piggery monitoring model establishment module, a piggery monitoring model by taking the historical food intake amount and the historical environmental parameters as an input and the historical health state and the historical epidemic disease state as an output; determining by means of a first current state determination module, a first current state of the live pig according to the piggery monitoring model, wherein the first current state comprises a healthy state and an epidemic disease state; and monitoring, using a monitoring module, a monitored piggery according to the first current state wherein the determining a first current state of the live pig according to the piggery monitoring model specifically comprises: obtaining a current food intake amount of the live pig within a period of time threshold range; determining whether the current food intake amount is in a downtrend within the time threshold range to obtain a first determining result; if the first determining result indicates that the current food intake amount is in the downtrend within the time threshold range, obtaining current environmental parameters of the monitored piggery; determining whether the current environmental parameters and the historical environmental parameters are within an environmental-parameter similarity threshold range to obtain a second determining result; and if the second determining result indicates that the current environmental parameters and the historical environmental parameters are within the environmental-parameter similarity threshold range, determining, by taking the current food intake amount and the current environmental parameters as an input, the first current state of the live pig according to the piggery monitoring model. obtaining a current food intake amount of the live pig within a period of time threshold range; determining whether the current food intake amount is in a downtrend within the time threshold range to obtain a first determining result; if the first determining result indicates that the current food intake amount is in the downtrend within the time threshold range, obtaining current environmental parameters of the monitored piggery; determining whether the current environmental parameters and the historical environmental parameters are within an environmental-parameter similarity threshold range to obtain a second determining result; and if the second determining result indicates that the current environmental parameters and the historical environmental parameters are within the environmental-parameter similarity threshold range, determining, by taking the current food intake amount and the current environmental parameters as an input, the first current state of the live pig according to the piggery monitoring model.