Abstract:The Palace Museum has a collection of pre-liberation 'Yang-Shi-LEI' hot samples and other related items, one of which is a family heirloom of the Lei family, which is a secret book of architectural pithy formula manuscript. The manuscript is in poetic style, but it is easy to remember. This pithy formula is the crystallization of the wisdom of the ancient working people, and is a precious material for studying the technical practices and algorithms of traditional architecture in the Qing Dynasty. The pithy formula played a role in the inheritance. In order to use the past to serve the present, some of them are selected for the reference of traditional construction workers.