Abstract: As the drought occurred frequently, and remote sensing technology matures, the drought remote sensing monitoring has become an important means of drought monitoring, and the vegetation supply water index(VSWI) products is an important reference for drought monitoring, but its production involves large amount of data, and the processing cycle is long, which influence the timeliness seriously. Based on OSGI service, a distributed production model of VSWI is proposed, which turn the VSWI algorithm into an OSGI module called Bundle. This Bundle can be deployed and installed dynamically in a distributed OSGI platform, which can make full use of the resources in LAN, and be helpful to raise up the operating rate of image processing, as well as lessen the memory footprint, which have been proved in this paper. This model will play an important role in massive remote sensing data processing and emergency monitoring.