Idiom is the fruit of the minds of mankind in the process of its production activities and life experience. It can figuratively and logically express the ideas of people and the deep meaning of life. Due to the difference in construction between Chinese and Russian idiom units, great importance is attached to the analysis of the features of both the semantic and structural (or formal) construction of both languages, which contributes to the correct understanding of the meanings of idiom units and their accurate translation. At the same time, Chinese and Russian languages contain a large number of digital idiom. These idioms are not only often used in everyday life, but also largely reflect the thinking style, life habits and cultural identity of the nation. In order to propose the correct translation as possible, one must take into account both the culture, history, tradition, customs and manners of the people who speak this translated language, as well as stylistic and expressive colors of the language units themselves, etc. Based on the comparison and analysis of the formation, origin, nature, scope of use and structural characteristics of the Chinese and Russian digital idioms, we have summarized the translation methods based on the translation theory. This is very important for establishing the theory of digital idiom translation methods, and is applied in daily life and literary works.