Objective: By analyzing and mining these obtained numerous pharmacodynamic test data

finally testify the characteristic of two-way applicable of Chinese herbs with neutral property. Method: Weka analysis software and bayesian network analysis method were used in this research. The procedure was data preprocessing

attribute selection

building related Bayesian network model

classification forecasting. Result: In the heat stagnation and blood stasis syndrome

AUC values of classification between three different herb property groups and model control group were in order of neutral property herb>cold property herb>hot property herb.But in the cold stagnation and blood stasis syndrome

the order was hot property herb>neutral property herb>cold property herb. Conclusion: To treat heat stagnation and blood stasis syndrome

the effect of neutral property herb and cold property herb were better than hot property herb

even neutral property herb was better than cold property herb.To treat cold stagnation and blood stasis syndrome

the effect of neutral property herb and hot property herb were better than cold property herb.These results proved that neutral property herbs were two-way applied to cold and hot syndrome

which did not rely on concocted degeneration or compatibility.