Bottom ash is a by-product produced from the process of burning rocks for electricity generation. The bottom ash produced requires a large enough storage area, high transportation costs to move it to a safe final disposal location so that it does not have a negative impact on humans. This research aims to analyze the effect of using bottom ash waste in the HRS WC asphalt mixture. The asphalt mixture is made in the form of a cylinder with a diameter of 101.6 mm and a thickness of 64 mm and is made in a hot mix. The test object was tested using the Marshall test to determine stability. Flow, vim and marshall quotient. The use of 20% BA to substitute sand in the asphalt mixture has a positive impact by increasing the stability value. The flow value meets the specifications required by the ministry of public works and public housing. The VIM value of the asphalt mixture also meets, indicating that the presence of bottom ash with an amount of up to 20% in the asphalt mixture can work optimally in the asphalt mixture.