The main objective of this experimental study is to improve the properties of the gravel soil by adding bitumen emulsion. An attempt has been made to use emulsion for improving the strength of gravel soil expressed in terms of CBR values which may prove to be economical. By adding 2% 4% 6% and 8% of bitumen emulsion to gravel soil the strength property of is increased. The characteristic properties of soil i.e. specific gravity, plastic limit, liquid limit, plasticity index and CBR values of gravel soil with bitumen emulsion was studied. From tests it is observed that excellent soil strength results by using bitumen emulsion. A little cement added to provide better soil strength. It is observed that excellent soil strength results by using cationic bitumen emulsion (CMS) with little quantity of cement used as filler. The appropriate mixing conditions for gravelly soil with CMS Bitumen emulsion have been first attempted. This is followed by deciding four particular material conditions to show the variation in dry density and CBR value to achieve the best possible strength properties of gravel soil. The result shows the best strength properties (CBR) of gravel soil at 8% of adding bitumen emulsion.