— This paper describes the design and implementation of a digital ink recognition server for handwritten Japanese text. Currently, fast and accurate recognition of online handwritten characters requires a high-performance CPU and a large memory space. However, PDA and other small portable devices lack the qualification. On the other hand, data transmission speed is getting remarkably higher. To solve the CPU and memory constraint on a client and avail the speed-up of transmission, we employ a network environment and build a digital ink recognition server. This paper describes network data flow transmission, client/server architecture and presents performance. Recognition Server; Online Handwriting; Client/Server; Japanese Text; Digital Ink