The present invention discloses a method and system for monitoring an epidemic disease in a piggery. The monitoring method includes: obtaining a historical food intake amount, historical environmental parameters, a historical health state and a historical epidemic disease state of a live pig, where the historical environmental parameters include a temperature, a humidity, and concentration of gas in the air； establishing 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 a first current state of the live pig according to the piggery monitoring model, where the first current state includes a healthy state and an epidemic disease state； and monitoring a monitored piggery according to the first current state. The method for monitoring an epidemic disease in a piggery and system of the present invention improves the efficiency of monitoring an epidemic disease in a piggery.
