D rilling mud is one the most significant factor in drilling division. Drilling mud has an active role while drilling. Therefore, compatible drilling mud properties must be made so it becomes suitable with the needed mud properties specification. The mud that used for this scientific essay focused to overcome the loss circulation. Loss circulation is the loss of the drilling mud to the formation, total or partial loss. Generally, loss circulation is divided by two, partial and total loss. Partial loss is the loss of the mud partially while total loss is the total loss of the mud to the formation without any back circulation to the mud pit.Loss circulation is caused by an open gap in the formation which allows the drilling mud to flow to the formation. The loss circulation can be caused by the difference between the pressures in the borehole with the formation pressure. There are several methods that used to overcome the loss circulation problem, decreasing the mud pump pressure, decreasing the mud weight, increasing the mud viscosity and gel strength, decreasing the surge pressure within the borehole, the application of sealing agent or cement plugfrom my experiment using Banana Stem as Loss Circulation Materials the addition of banana stem up to 7 gr give affects in healing loss circulation. The physical and rheological properties are meet with the expected spesification at temperature of 2400F such as Density (8,36 ppg), Viscosity (70 sec/quartz), Plastic Viscosity (17), Yield Point (14), Apparent Viscosity (7), Gel strength 10’ (17), Gel strength 10” (14), filtrate loss (6), mud cake (2 mm) dan pH.(10,2)