Abstract: Given the volatile international landscape and frequent armed conflicts, research on frontline battlefield casualty search and rescue evacuation devices has become a hotspot. Continuously maturing uncrewed vehicle technology is revolutionizing traditional approaches to frontline casualty evacuation. Both the PLA and the U.S. military have conducted exploratory research in this domain, yet persistent gaps remain. The following provides a comprehensive review of U.S. and PLA research on casualty search, rescue, and evacuation devices, encompassing the development, current status, and application of various new evacuation equipment within both armies.