The Shuiyuan Suspension Bridge or Shuanglong Rainbow Suspension Bridge () is a suspension bridge in Xinyi Township, Nantou County, Taiwan.
The bridge was constructed at a cost of NT$60 million with funding from Nantou County Government, Sun Moon Lake National Scenic Area Administration, and Xinyi Township Office. It was opened to the public on 1 January 2020.
The bridge features alternate different color for every 50 meters of its length.
The bridge spans over a length of 342 meters with 110 meters of clearance below it. It was constructed in parallel with the older bridge built earlier.
The bridge is accessible by bus from Shuili Station of Taiwan Railway.