Abstract: At first,this paper makes a literature study of learning performance,and then taking CET-6 simulation test for example,the authors  make some related investigations and analysis about factors that affect learning performance.On this basis,the authors make a model of learning performance about college students by importing ideas and methods of System Dynamics.And then the authors make a simulation on this model by the Vensim Software and provide analysis about it.At last,the authors provide some suggestions through analyzing investigations and interviews with undergraduate students.This research is hoped to get a better effect in practice.

Key words: learning performance, System Dynamics model, Vensim simulation, emotion intervention