Precision positioning stages are essential components in various applications requiring accurate movement control. Temperature fluctuations can cause thermal expansion of materials, leading to positional drift and reduced accuracy. A study investigated the effects of temperature on a large-stroke, high-precision positioning platform and proposed a real-time temperature compensation method based on a thermal expansion model. Experimental results demonstrated that this compensation approach could reduce the root mean square value of temperature-induced drift by over 80%, offering a simple and effective solution to enhance positioning accuracy.