Kedai Kandang Village, South Kluet District, South Aceh Regency, is one of the sago-producing areas. In this study, the waste resulted from the processing of sago was used as a reinforcing material for composite materials. This research was conducted to determine the mechanical strength of the composite made from marble waste reinforced with sago fiber waste to be used as rencong Marble souvenir storage. The composition of the mixture in the samples used was 85