For searchable encryption, balancing the security and retrieval efficiency of data is important. Aiming at the low retrieval performance and the lack of single keyword search mode in SSE-1 ciphertext retrieval scheme, and the problems such as the limitation of single-machine resources in the traditional single-server architecture, a multi-keyword parallel ciphertext retrieval system was designed and implemented. Different index encryption strategies were used to improve the ciphertext retrieval performance. The block search of the inverted index was realized by partitioning the ciphertext inverted index, which solves the limitation of single-machine resources and improves the retrieval efficiency. The traditional single-machine retrieval architecture was extended and the parallel retrieval of multiple keywords was realized by combining the characteristic of distribution. Experimental results show that compared with the SSE-1 scheme, the proposed scheme has the efficiency of retrieval and update operations improved under the premise of ensuring ciphertext data security and realizes multi-keyword retrieval. At the same time, the distributed architecture of the system is dynamically expanded to improve the system load capacity.