The Ruisi Circuit (瑞思赛道), located in Tianjin, China, is a permanent motorsport facility designed to meet FIA Grade 4 standards. Opened in 2018, the circuit represents a relatively recent addition to China's growing motorsport landscape. While not hosting major international events, it serves as a crucial training ground and competition venue for domestic racing series and club events.

The track layout is a challenging 3.43-kilometer (2.13-mile) course featuring a mix of high-speed straights, tight corners, and flowing sections. The circuit's design emphasizes technical driving skill, demanding precision and car control from drivers. It boasts 14 turns, including a notable hairpin bend and several sweeping corners that reward brave and committed lines. The relatively short length and varied corner types make for exciting and closely contested races.

Ruisi Circuit primarily caters to local and regional racing series, including GT championships, touring car events, and single-seater categories. Track days and driver training programs are also a core part of its operations, aiming to develop the next generation of Chinese motorsport talent. The facility includes essential amenities such as pit garages, a race control tower, and spectator areas, though on a smaller scale compared to international-grade circuits.

What makes Ruisi Circuit unique is its focus on accessibility and driver development within the Chinese motorsport ecosystem. Unlike some of the larger, more prestigious circuits, Ruisi prioritizes providing a safe and challenging environment for amateur and semi-professional racers to hone their skills. Its technical layout also encourages close racing and provides a valuable testing ground for vehicle setup and development, contributing to the overall growth of motorsport in China.