The invention discloses a cultural relic restoration method based on internal supporting and binding. The cultural relic restoration method based on internal supporting and binding comprises the stepsthat firstly, an internal supporting model is manufactured according to the original contour of a to-be-restored cultural relic; and secondly, pieces of the to-be-restored cultural relic are fixed tocorresponding positions of the internal supporting model, so that the outline of the to-be-restored cultural relic is obtained. According to the cultural relic restoration method based on internal supporting and binding, the cultural relic is restored without changing the original appearance and material reversibility of the cultural relic in terms of the Law for the Preservation of Antiques so that the cultural relic can be exhibited and displayed; and historical information on all the pieces of the cultural relic is completely reserved so that humanistic and social information contained inthe cultural relic at a certain time can be represented more visually while the cultural relic is exhibited, and people can understand the current history more deeply.