Implementation of a web-based logbook system on EAST is introduced, which canstore the comments for the experiments into a database and access the documents via various webbrowsers. The three-tier software architecture and asynchronous access technology are adopted toimprove the system effectively. Authorized users can view the information of real-time discharge,comments from others and signal plots; add, delete, or revise their own comments; search signaldata or comments under complicated search conditions; and collect relevant information andoutput it to an excel file. The web pages can be automatically updated after a new discharge iscompleted and without refreshment. Implementation of a web-based logbook system on EAST is introduced, which canstore the comments for the experiments into a database and access the documents via various webbrowsers. The three-tier software architecture and access technology are applied toimprove the system effectively. Authorized users can view the information of real-time discharge, comments from others and signal plots; add, delete, or revise their own comments; search signaldata or comments under complicated search conditions; and collect relevant information and output it to an excel file. The web pages can be automatically updated after a new discharge iscompleted and without refreshment.