Clayshale is one of the soil that has strength and durability problems when its exposed to a wetting-drying cycle. One of the special treatments is stabilization using chemicals material for exemple cement. This study aims to compare of sweliing potential, CBR values, mixing method, of clayshale with and without cement stabilization and variationof blows. This test were used 10% cement content and mixing with dry and spray method. The specimens compacted using 10, 25, 56 blows per layer. The result show that cement stabilized clayshale decreased the swelling value significantly with average 9,6%. The result show that cement stabilized clayshale increased the CBR value significantly with average 27,60%. The Value of CBR dry mixed method is higher with average 5,5 % than the spray mixed method. The result also show that number of blows increased the CBR value significantly with average 1,41% for 0% cement and 10% cement increased with average 9,95%.