Knee Osteoarthritis (KOA) symptoms have a significant impact on the senior population's quality of life. Low-level laser therapy, heat therapy, and massage therapy are commonly utilized as standalone therapies for joint diseases. However, there have been very few instances of combining these therapies into an integrated device for KOA. The goal of this study is to create a novel hybrid therapeutic device that can suit a variety of knee rehabilitation needs. This hybrid treatment equipment, which combines low-level laser therapy, heat therapy, and local massage therapy, can successfully relieve KOA patients' clinical symptoms. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores were gathered and examined after each period. Low-level laser, heating, and massage therapy significantly reduced WOMAC scores for pain, stiffness, function, and total WOMAC after two treatments (p < 0.05). The score climbed somewhat after the post-treatment period, but it remained lower than the baseline, indicating that the treatment outcome could endure for a long time. As a result, This CUHK-OA-M2 gadget, as an integrated multi-functional hybrid therapeutic device, has therapeutic value for treating osteoarthritis symptoms in the knee joints of older patients.