[en] We have studied the Hanle spectrum in the paraffin coated Rb vapor cell. The spectrum was observed by using one external cavity diode laser in the Λ type scheme between the Zeeman sublevels of the F"g"=2→F"e"=1 transition. In Hanle spectrum, we could observe the dual structured spectrum in the paraffin coated vapor cell. Figure 1 shows the difference of transmittance according to the direction of the magnetic field. The minimum value of transmittance is about 66% of the maximum transmittance. When the z direction magnetic field applied, the signal shifted like figure 2. The magnitudes between the peaks are about 22.5mG. The narrow linewidth of dual structured signal was measured approximately 400Hz. We investigated the dual structured lineshape as a function of magnetic field, laser power and analyzer's angle