In the oracle bone script, there is a □·□·□·□·□·□ form that scholars consider to be interpreted as the characters ‘zú(足)’, ‘pĭ(疋)’, ‘pĭ(疋)’ and ‘zú(足)’, and ‘zhŏng(踵)’. Based on the following reasons, this study argues that, the form □·□·□ and □·□·□ are different characters. First, scholars interpret the □·□·□·□·□·□ form as ‘zú(足)’, ‘pĭ(疋)’, ‘pĭ(疋)’ and ‘zú(足)’, and ‘zhŏng(踵)’. These three characters have different sounds in archaic Chinese, and the forms of □·□·□ and □·□·□ are slightly different. Although their meanings were sometimes used differently, there were also instances where they were used together for a specific meaning without being distinguished from one another. Second, the □·□·□·□·□·□ form found in the oracle bone script does not appear after the Shang Dynasty. Among them, the □·□·□ form is designed to mimic the feet and legs. Following the Shang dynasty, from the Western Zhou Period to the Spring and Autumn Period, the characters ‘pĭ(疋)’ or ‘zú(足)’, appeared in Chinese bronze inscriptions as the □·□ form. During the Warring States Period, although the character ‘pĭ(疋)’ appeared as the □·□·□ form, and the character ‘zú(足)’ appeared as the □·□·□·□ form, they were sometimes used interchangeably. During the Han Dynasty, the character ‘pĭ(疋)’ appeared as the □ symbol. The characters ‘pĭ(疋)’ and ‘zú(足)’ were used to mean “foot”. Third, the □·□·□ form found in the oracle bone script that is reviewed in this study mimics the shape of a foot with a large heel to convey the word “heel”. Among the characters ‘𣦟’, ‘歱’, ‘zhōng(蹱)’, and ‘zhŏng(踵)’, the character ‘𣦟’ first appears in the Chinese bronze inscriptions of the Western Zhou Period in the form of the □ form. The character ‘歱’ refers to the □ of the Later Han Period, the character ‘zhōng(蹱)’ refers to the □·□ of the Former Han Period. The character ‘zhŏng(踵)’ first appears in the Unearthed texts of the Pre-Chin and used for the □ of the Later Han Period. Among these form, ‘zhŏng(踵)’ and ‘𣦟’ were used to mean “heel” during the Warring States Period, and ‘歱’ was used to mean “heel” during the Han Dynasty. From the above analysis, this paper suggests that the □·□·□ form can be interpreted as ‘zhŏng(踵)’, and the □·□·□ form can be interpreted as either ‘pĭ(疋)’ or ‘zú(足)’, Although □·□·□ and □·□·□ are different form, this study suggests that they were used without distinction to convey specific meanings.