Seven kills of heavenly stem and seven kills of earthly branch refer to a pattern in numerology, but their appearance characteristics, advantages and disadvantages are different. The appearance characteristics of the seven kills are capable, witty and adventurous; The appearance characteristics of the seven kills of the earthly branch are sedate, unsmiling and determined. From the advantages and disadvantages, the advantages of the seven sands are outstanding appearance, and the disadvantages are easy to take risks blindly; The advantage of the seven kills of the ground branch is stability and reliability, but the disadvantage is that it is not easy to be found. Therefore, there are obvious differences in appearance characteristics, advantages and disadvantages between the seven kills of heavenly stem and the seven kills of earthly branch, reflecting different personality characteristics and fate trends.