Abstract: A Virtual Laboratory for Space Physics（VLSP） is constructed based on Matlab Web Server and World-Wide Web（WWW） and the onboard data analysis system is briefly introduced.The concrete realization of the current sheet structure analysis module is addressed by employing a specific example.Applying the current sheet analysis module in VLSP，the flapping motion and the structure of the current sheet near reconnection diffusion region in the near-earth tail on August 6，2003 is studied in detail.The VLSP introduced here is well functioning and is apt to be extended to other facets，presenting great facilitation to researchers.

摘要： 基于Matlab Web Server和WWW构建了空间虚拟实验室（VLSP），并简单介绍了数据分析系统。通过一个具体的电流片结构分析事例阐述了电流片结构分析模块的具体实现。应用该系统具体分析了2003年8月6日Cluster卫星观测到的重联耗散区附近的电流片结构。该系统具有良好的实用性和可扩展性，极大地方便了科研人员的研究工作。