本文构建了中国企业对外直接投资活跃度评价工具。首先,考虑投资金额、投资地域、投资行业、投资案例的总量、增长量、增长速度等因素,利用主成分分析方法构建了包含活跃度、增长因子、案例数因子与投资金额因子的第一项评价工具——评价指标体系。然后,利用评价指标体系构建了第二项评价工具——企业分类方法,将我国企业分成了四类——活跃型、普通型、规模型、衰退型。其中,建立并比较了判别分析和决策树两种企业分类方法。 This paper constructs an evaluation tool for the active degree of OFDI in China. First of all, considering the factors such as the amount of investment, investment area, investment industry, investment cases, growth volume, growth rate and other factors, using the principal component analysis method to build the first including activity, growth factor, case number factor and investment amount factor Evaluation Tools - Evaluation Index System. Then, using the evaluation index system, a second evaluation tool - enterprise classification method is constructed, which divides Chinese enterprises into four types: active, common, scale and recession. Among them, the establishment and comparison of discriminant analysis and decision tree two business classification methods.