Drying is the process reduces the moisture content to maintain agricultural productivity to be maintained for long and reduce the deterioration of the yield and there's the key factor is the subject of the humidity Currently, there are several ways to reduce humidity such as The sunlight, baking Drying with cold etc. Chilli Peppers drying process is mainly used by overexposure to the sunlight. It is usually found problems with moisture and a long dry period during the rainy season Solar oven has width 2×6×2.2 Meters. The solar two panels, The system control panel to work. The maximum temperature of the enclosure is 55 degrees Celsius And minimum temperatures are at 38 degrees Celsius from drying has found a 79.5 percent moisture content of moisture. Found that the temperature 35-39 degrees Celsius In general, the drying time to 72 hours. In the solar oven temperature at 55 degrees Celsius. The internal heat caused by the accumulation of heat energy can reduce the moisture content of the pepper, the remaining 14 percent of moisture the results showed that the drying time in the oven to dry for 36 hours. On average, the rate of drying per day 377.77 gram. The solar oven reduces drying time drying can airing both sunny and there is no the sunlight. Knowledge can be transferred to the farmers who produce peppers. Such tools can be applied to reduce the moisture content of other agricultural materials as well.