The present study was designed to examine the changing of phonological and semantic processing while repeated oral reading of sentence in Japanese as a second language. An experiment was carried out to observe the repetition effects from the first reading of a normal or words-scrambled sentence to the second reading of the normal sentence. Rapidness of phonological coding of words and types of instructions were used as independent variables, and rereading time were adopted as dependent variables. The results showed that phonological and semantic processing was changed while repeated oral reading. And it was also suggested that rapidness of phonological coding of words affects how change sentence processing while repeated oral reading.