The invention discloses a pipe-type communication method for interprocess communication, comprising the following steps: receiving the data processed by the process of a server at the previous level; caching the data to a first caching pool; reading the data in the first caching pool, and caching the data to a first memory buffer zone so as to bring convenience for the process of the server to process; writing the data processed by the process of the server into a second memory buffer zone; caching the data in the second memory buffer zone to the second caching pool; and sending the data in the second caching pool to the process of the server at the next level to process, wherein the first caching pool and the second caching pool are storage spaces arranged on an external memory. The invention also discloses a pipe-type communication system for interprocess communication. According to the method and the system, data in the pipe-type communication mode in the streamline concurrent processing process are cached by the large-capacity storage space of the external memory, thereby improving the reliability and the efficiency for data transmission during pipe-type communication.