Parallel Java是基于Java提供的并行编程API，其目标是（1）在一套API中同时支持基于线程/共享内存的并行编程和基于消息/集群的并行编程；（2）提供与OpenMP和MPI相同的功能，但采用面向对象的Java API；和（3）很容易部署在异构计算环境中，包括单核CPU、多核CPU及集群。本文介绍了Parallel Java的特点和体系结构，并与其他基于Java的并行开发中间件进行了对比。(Parallel Java is a API parallel programming based on Java provides the goal (1) in a API and thread support / shared memory parallel programming and parallel programming based on message / cluster; (2) with OpenMP and MPI provide the same functionality, but the Java API object oriented; and (3) is easy to deploy in a heterogeneous computing environment, including single core CPU, and multi-core CPU cluster. This paper introduces the characteristics and architecture of Parallel Java, and compares it with other Java based parallel development middleware.)