Accurate and fluent linguistic performance is the goal of language acquisition for foreign learners of Japanese. However, some native Chinese learners (hereinafter referred to as CNJ) complain that they cannot memorize the Japanese syllabary. This is related to the excessively long CV syllables of Japanese produced by CNJ, and prompt resolution of this issue is required.In this research, from the viewpoint of whether it is possible to reproduce the appropriate syllable length by short CV syllables using the meaningless words of 0 tone syllables. As a quasi-experimental study, using the three-syllable and four-syllable test words, including words, phrases, and short sentences by 6 CNJs and 3 native speakers of Tokyo dialect (hereafter referred to as JN) to conduct an experiment.As a result, the syllable length of CNJ (before instruction) for both three-syllable and four-syllable words was significantly more than JN and was also shown in the difference in expansion and contraction rate of syllable length from JN. But after instruction, no significant difference observed, which is close to JN. It shows that the basis of Japanese utterances based on consecutive short CV syllables has already been established.It was confirmed that it is possible to produce an appropriate syllable length by recalling the points of continuous short CV syllables of Japanese, based on meaningless words with continuous o tone syllables. Establishment of the base of utterances by consecutive short CV syllables of Japanese is a standard for resolving discrepancies in CV syllable lengths and grasping the phonetic differences between long syllables. It is also expected to serve as a basis for mastering special syllable.