Drug-based treatments for rheumatoid arthritis (RA) often lead to significant side effects like gastrointestinal issues, liver dysfunction, and immune suppression, prompting the search for safer alternatives. Low-level laser therapy has emerged as a promising adjunctive treatment for RA, effectively reducing pain, inflammation, and improving mobility through photobiomodulation. However, optimizing parameters such as dosage, power, and wavelength specificity for RA remains crucial. This study aims to investigate low-intensity laser therapy’s efficacy in RA treatment, involving a systematic literature review for parameter selection, device validation in the domestic market, and prototype development. Laboratory experiments will assess parameters including output power, wavelength accuracy, and beam profile consistency. Preliminary findings suggest potential for low-level laser therapy, but current devices are not RA-specific, requiring adjustments for optimal efficacy, addressing issues like inadequate power outputs and beam profile irregularities. In conclusion, low-intensity laser therapy offers a safe, non-invasive alternative for managing RA symptoms. Further research is needed to refine parameters and establish standardized protocols for enhanced clinical application.