The article mainly discussed design idea and structural design of building the map service platform under the environment of web

and furthermore took more concern on the vector map data flow

include data acquiring

data compression

data transfer

data visualization and spatial query

etc..Moreover

adapted Java language

We practice the map data construction

data transfer and data visualization based on socket protocol between server side and client side

and realize the internet map service platform.The authors discussed the implementation of internet map service platform based on Java.