This paper was to found the optimal mixing ratio between crude oil sludge and Mechanical Biological waste treatment (MBT) and test physical property .Ratio were 10:90 20:80 30:70 40:60 50:50 . Study of economics estimate and analyzed by ASTM (American Society of Testing and Materials) . The results showed that the best pellet of optimal mixing ratios be was 10:90 Because it was found that fuel gave the heating value was 9,627.46 kcal/kg , that gave good Processing , % moisture was 3.73, % ash was 7.95 . Economics estimate results showed that fuel cost was 1.6 Bath/kW