Abstract：In order to resolve the dynamic characteristics of pig price fluctuations and transmission from January 2000 to September 2018, the paperestablishescomplex network and analyzes model characteristics of the network,weighted aggregation coefficient of core modal nodes of hog′s price fluctuation, transmission models of K-core and transition time characteristics. The results show that the sum of the weighted degree distributions of the six modes is as high as 79.26%, which accounts for the dominant position of conduction. Modal transmission is the main transmission pathways of price volatility which is a one-way closed loop composed of six main modes. The price fluctuation of hog′s has strong gradual, persistent and periodic characteristics, and the above modal transitions have strong temporality. The modal transitions with a downward trend mainly occur in March, April and May, while the modal transitions with an upward trend mainly occur in July, August, September, October and November.
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