Ear canal care is one of the common life behaviors in people’s lives. According to ENT physicians, inappropriate ear canal care practices may lead to several diseases such as fungal otitis externa, secretory otitis media, suppurative otitis media, and external ear canal eczema, all of which are the types of diseases visible in the ear endoscope. In this paper, the research team designed an interactive system, EAR-NURSING, based on a thorough study of existing ear canal care approaches, which can support users to visualize and integrate ear canal care in scenarios of ear canal discomfort, and can scientifically care for ear canal health utilizing temperature regulation and multimodal sensors, while transmitting and recording real-time data on ear canal health. EAR-NURSING is a head-mounted ear protector (smart hardware) with multimodal sensors and a professional endoscope on the structure, using component sterilization, 360-degree rotation, adsorption, caressing, temperature control, music therapy and data collection and analysis technologies, and matching a smartphone app to achieve the goal of safe, comfortable and healthy ear canal care, thus predicting and examining the health index and lesion possibility in the ear canal, tracking it well with data and recording it. We also applied qualitative, quantitative, and hands-on design methods to conduct a preliminary user study of EAR-NURSING, which showed that most of the users had high perceived interest and willingness to use EAR-NURSING and were confident in the health care of their ear canal.