We present multi-band results for GRB071010B based on Swift, Suzaku, and ground-based optical observations. This burst is an ideal target to evaluate the robustness of the Esrcpeak - Eiso and E srcpeak - Eγ relations, whose studies have been in stagnation due to the lack of the combined estimation of E srcpeak and long-term optical monitoring. The joint prompt spectral fitting using Swift/Burst Alert Telescope and Suzaku/Wide-band All-sky Monitor data yielded the spectral peak energy as Esrcpeak of 86.5+6.4-6.3 keV and Eiso of 2.25 +0.19-0.16 × 1052 erg with z = 0.947. The optical afterglow light curve is well fitted by a simple power law with temporal index α = -0.60 0.02. The lower limit of temporal break in the optical light curve is 9.8 days. Our multi-wavelength analysis reveals that GRB071010B follows Esrcpeak - Eiso but violates the Esrcpeak - Eγ and Eiso - Esrcpeak - tsrcjet at more than the 3σ level.