Aiming at the defects and disadvantages of the traditional model data services,we study the classification and characteristics of model data in accordance with the Internet plus thinking. On this basis,we analyze in detail the resolution of the type, level, time, hour, data center, parameters, number, step, area, and grid in each model data and design the conversion algorithm from data configuration to MARS (Meteorological Archival and Retrival System) command scripts. The processes,databases,functions, and pages are designed from the viewpoint of usability, and a refined data service system is implemented based on B/S architecture. It greatly reduces the work intensity of the data service personnel and improves the working efficiency of operational and research users.