Recently, the voice of reclassifying the traditional verb class of intransitive into unaccusatives and unergatives is very high in theories field. The correlational researches have fully justified the Split Unaccusativity in Japanese. The present paper used 25 Japanese Causative-passive sentences as the experiment material to investigate the mastery degree with respect to the Split Unaccusativity of 8 Japanese native speakers, 11 advanced Chinese JFL learners and 16 near-native learners respectively. Through the data obtained by the seven-point Likert scale, we came to a conclusion that Chinese JFL learners can to some extent acquire the Japanese Split Unaccusativity.