In order to ensure the balance of sentencing，the Supreme People’s Court and Procuratorate issued normative documents， such as Sentencing Guideline for Common Crimes(Trial)does not clarify the connotation of the baseline punishment， and the baseline punishment discretion rules are lack of clarity and operability， so the sentencing of intentional homicide is unbalanced. Therefore， in order to make up for this deficiency， on the basis of clarifying the connotation of benchmark punishment， this paper takes 132 cases in Chongqing as the analysis sample to empirically analyze the correlation between sentencing results and the circumstances of baseline punishment discretion， so as to construct the baseline punishment discretion model of intentional homicide.