The invention relates to an off-peak power consumption plan compiling method based on a mixed multi-attribute evaluation. The method is brought forward for solving the problem of different data information forms existing when a user off-peak power consumption plan is compiled. The method comprises the following steps: first of all, establishing an evaluation index system for sequencing enterprise uses participating in orderly power consumption; then, for different data types (real numbers, interval numbers, random variables and fuzzy numbers) under each index, calculating mixed dominance degrees of the users participating in plan compilation under different attribute indexes, and determining comprehensive approximation degrees of each user under these attribute indexes; and finally, on the basis that a subjective and objective comprehensive weighing method is taken into consideration, sequencing the users through calculating weight approximation degrees, and determining a priority power consumption sequence of the users. The method brought forward by the invention can process attribute data of different types and can also take both subjective and objective factors into consideration.