The causal relationship between the live pig slaughter quantity and actual per capita net income in rural area of China from 1977 to 2007 was analyzed by the VAR model and Granger test to guide live pig production and enhance farmers'income.The results showed that the live pig slaughter rate and actual per capita net income increased by 3.6% and 5% respectively in recent years and there was no Granger relationship between live pig production and farmers'income,From the long term,live pig production can't effectively improve the farmers' inc...