Aphis gossypii Glover is sucking pests of horticultural crops which can cause damage to plants such as necrosis, chlorosis, stunting, wilting, leaf distortion, and defoliation. One alternative way of handling A. gossypii is by using botanical pesticides. Shallot peel contains acetogenin, saponin, and squamosin compounds which can be used as botanical pesticides. The purpose of this study was to determine the effect of shallot peel extract pesticides on the mortality of A. gossypii. The research method used was Completely Randomized Design (CRD). The research data were analyzed using Analysis of Variance (ANOVA) and then continued with Duncan's test. The testing phase for pests by preparing 5 variations of extract concentrations, namely 0 ppm, 125 ppm, 250 ppm, 500 ppm, and 1,000 ppm. Based on the results of the study, data was obtained that the methanol extract of shallot peel had a significant effect on the mortality of A. gossypii. The treatment with a concentration of 1,000 ppm was the best treatment which was shown to have a mortality rate of 100% at 8 hours. The lethal concentration value of 50% (LC50) obtained by the regression test was 243.06 ppm.