[Objective]To research the extraction technology of pigments from the leaves of Coix lacryma-jobi L. by ultrasonic wave,and to provide theoretical basis for the utilization of C. lacryma-jobi resources. [Methods]The optimal extraction technology was obtained based on single factor test and orthogonal test. [Results] The optimal extraction technology for pigments from C. lacryma-jobi leaves was as follows: 1∶20 solid-liquid ratio,120 W extraction power and 9 min extraction time. [Conclusions] Raw materials and the reagent were low-cost and easy to get; the extraction method was simple,repeatable and time saving. [Objective] To research the extraction technology of pigments from the leaves of Coix lacryma-jobi L. by ultrasonic wave, and to provide theoretical basis for the utilization of C. lacryma-jobi resources. [Methods] The optimal extraction technology was acquired based on single factor test and orthogonal test. [Results] The optimal extraction technology for pigments from C. lacryma-jobi leaves was as follows: 1:20 solid-liquid ratio, 120 W extraction power and 9 min extraction time. [Conclusions] Raw materials and the reagents were low-cost and easy to get; the extraction method was simple, repeatable and time saving.