Grid portal gives a center access point to access Grid applications and resources.Currently the existing Grid portals are mainly designed for computational Grid which puts focus on how to view files

submit and monitor jobs that alleviate the complex ity of using the Grid application

while the information Grid portal puts focus on how to provide various services in Grid environment to the public rather than scientists.In Information Grid portal the portal information service

workflow service and transaction service are very important to achieve the goal of building a web interface for citizens to seamlessly and transparently use the services located in Information Grid environment.This paper reports the current research and implementation in Information Grid portal based on ShanghaiGrid.