Reasons for code deviation include (1) People always try to invent new code；(2) Foreign language learners fail to master the code system of the target language，which often results in code deviation in crosscultural communication.
Reasons for code deviation include (1) People always try to invent new code；(2) Foreign language learners fail to master the code system of the target language，which often results in code deviation in crosscultural communication.
产生代码偏离的原因主要有：（1）作为言语交际主体的人总要设法创造新的代码；（2）外语学习者不能全面完整地掌握目的语代码系统，进行跨文化交际时，常造成代码偏离。