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The purpose of this study was to investigate the measurement reliability of the medial longitudinal arch of the foot in the standing position and the lower leg maximum anterior tilting (LMAT) position. [Methods] Eight subjects and three testers participated in this study. The arch ratio (AR) and the calcaneus angle (CA) were measured 3 times in each trial, both in the standing position and the LMAT position. Test-retest reliability was established using the ICC (1, k) model for data from the first to the third trials. Inter-tester reliability was established using the ICC (2, k) model for data from the average of the first to third trials for each tester. [Results] In both conditions, AR showed high reliability for all testers. CA showed high reliability for one tester, but the others showed insufficient reliability for use in a clinical setting. [Conclusion] We consider the measurement reliability of CA was affected by accumulation of experience and advancement of palpation. Therefore, the methods should give sufficient reliability for a clinical setting.