Abstract: PXE(Prcboot Execution Environment) tech. has played great roles for the powerful compatibility and case for maintenance. Internet requirement for data safety is more and more important while PXE methods is lackly. The applications of diskless tech and dynamic distributed security system in data storage were analyzed. Designing and studing the PXE tech.，reduced the risk of letting out and dependability of the network data under the strict data management.The function may bring huge economic benefit with the popularization of the applications and low maintenance cost.

Key words: PXE(Pre-boot Execution Environment)，Anthropic factor, Diskless network, SIMS (Secure Information Managcmcnt System)