Passive sentences. Teaching has always been the focus and difficulty of teaching Chinese as a foreign language. First of all, passive sentences are frequently used in verbal communication, and mastering passive sentences directly affects the daily communication of foreign students. Secondly, passive sentences often appear in books, newspapers and movies. However, in teaching Chinese as a foreign language, foreign students are afraid of passive sentences and their mastery of passive sentences is not satisfactory. Therefore, an objective and in-depth analysis of the differences between Chinese and Japanese passive sentences is of great benefit to the study and research of Chinese and Japanese passive sentences. This paper mainly discusses the differences between Chinese passive sentences and Japanese passive sentences from the following angles: Japanese passive sentences are divided into direct passive sentences and indirect passive sentences, while Chinese passive sentences are divided into passive sentences with passive markers and meaningful passive sentences. Both Chinese and Japanese passive sentences express semantic colors such as dissatisfaction, disappointment or injury to the subject. Chinese passive markers are generally considered as verbs or prepositions, while Japanese is a case particle. The syntactic component of Chinese passive sentence is a prepositional phrase composed of markers, which acts as an adverbial component in the sentence. Verbs and auxiliary verbs in Japanese passive structure form the predicate of a sentence. Japanese belongs to high context language, while Japanese belongs to cautious personality, which relies heavily on context and uses passive voice. Chinese is a language with a relatively low context, while people in China are more impulsive, not too dependent on the context, but use the active voice. Chinese transitive verbs correspond to other verbs in Japanese. Most Chinese transitive verbs correspond to other verbs in Japanese. In addition, there are paired verbs and dual-purpose verbs. On the basis of a thorough and comprehensive comparison between Chinese and Japanese passive sentences, this paper puts forward some suggestions on classroom teaching and textbook compilation from three aspects: syntactic characteristics, semantics and pragmatics.