两个实验分别采用词语境或句子语境探讨汉语同音歧义词 (homophones)歧义消解的过程。被试为 112名大学生。实验通过有计划地比较不同语境偏向条件下有关探测词和无关探测词之间反应时的差异 ,从而揭示汉语同音歧义词消解过程中 ,对其适当意义激活以及对其不适当意义抑制的时间进程。两个实验的结果都表明 :在同音歧义词加工的早期 ,语境的作用主要表现为抑制歧义词不适当意义 ,阻止其激活 ;随后 ,语境促进了歧义词适当意义的激活。另外 ,相对意义频率在同音歧义词歧义消解过程中有其影响。 The two experiments respectively use the context of words or sentences to explore the process of disambiguation of Chinese homophones. The subjects were 112 college students. The experiment compares the differences between the responses of probing words and unrelated probing words under different contextual biases in a planned way, so as to reveal the time when Chinese homonyms disambiguation is dispelled, and its proper meaning is activated and its inappropriate meaning suppressed process. The results of the two experiments show that in the early stage of homonym processing, the role of context is mainly to suppress the improper meaning of ambiguous words and prevent their activation; subsequently, context stimulates the activation of appropriate meanings of ambiguities. In addition, the frequency of relative meaning has its influence in the ambiguous disambiguation of homonym.