A novel long-range dielectric-loaded surface plasmon polariton waveguide (LR-DLSPPW) structure based on the golden ratio is proposed. Transmission characteristics, like the normalized electric field distribution, mode effective index, attenuation constant, propagation distance, mode width, figure of merit (FOM), and coupling length of this kind of waveguide, have been analyzed and numerically calculated via the finite element method at the telecom wavelength of λ0= 1.55 μm. The results show that the LR-DLSPPW based on the golden ratio has a longer propagation distance of 1.36 mm and a smaller mode width of 1.35 μm compared to non-golden ratio waveguides. When the height-width ratio of the dielectric ridge is at the golden ratio with a fixed area of 0.9 μm2, its FOM has a maximum value larger than 6.15×105. In addition, the crosstalk can be ignored when the distance between two adjacent waveguides exceeds 3 μm. Consequently, the designed waveguide has significant potential for applications in design of high density integrated optoelectronic circuits.