The invention relates to a structure for incremental deploying of 
server applications in a distributed 
software system, which comprises a deployer, resource deployers, a manager of the resource deployers and a backspace device, wherein the deployer is used for deploying the applications of a 
server; each resource deployer is used for deploying a resource; the manager of the resource deployers is used for registering and searching the resource deployers of corresponding resources; and the backspace device is used for establishing a backspace warehouse, recording backspace logs and executing backspace operations. The invention also relates to a method for incremental deploying of the applications in the distributed 
software system on the basis of the 
system structure. By adopting the structure and the method for incremental deploying of the 
server applications in the distributed 
software system, the problems of incremental deploying of standard J2EE applications are solved, and users can conveniently use 
package deploying and backspace functions to expand and support various 
package formats, and the invention has the advantages of simple and quick 
processing process, stable and reliable working property and wider application scope, can be applied to the 
system service deployment function of EOS (Electronic 
Order System), thereby effectively solving the backspace problem of incremental deployment.