Disclosed is a fingerstall oximeter comprising an upper housing (11), a middle housing (12), a lower housing (13) and a detection unit. The upper housing (11), the middle housing (12) and the lower housing (13) are connected in turn. The lower housing (13) is made of silica gel, and a finger accommodating chamber (14) for accommodating a finger to be measured is formed between the opposed surfaces of the lower housing (13) and the middle housing (12). The fingerstall oximeter has high measurement accuracy and small volume, and is easy to disassemble and carry.
