Memorable documents written in Dongba scripts, such as diaries and travels, record events in chronological order, which strongly reflect the value of Dongba applied documents. At present, few documents of this type can be seen. In January 2005, dongba He Xiudong, who comes from Tacheng Township, Lijiang City, Yunnan Province, accompanied Mr. Li Zaizhong to visit Aming Ling cave, after that He Xiudong wrote a travel note in Dongba scripts, which is a typical record. This article translates and interprets this travel note, and studies the writing phenomenon, phonetic complement, different graphs of the same word, multiple words in one graph, homographs and allographs of this document.

Expression type for mixed-use of Dongba characters can be divided into dominant type and parallel type. Causes for mixed-use includes three points: 1. similar or compatible patterns are the precondition for mixed-use; 2. certain relation exists among semantics of words represented by characters, or characters belong to the same classification in terms of meaning or have correlative meanings; 3. outcome is obtained during self-adjustment transitional stage of internal character of writing system. There are three solutions to solve the problem of similar characters: 1. re-distribution of characters’ functions; 2. integration of characters; 3. reconstruction of expression which is embodied in two aspects, including ideographical and phonetic expression transited from ideographical expression to additional phonetic complement, and transition from ideographical expression to pure phonetic expression.