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Apart from nuclear reactors, natural radiation sources contribute to the radiation received by humans. One of them is internal radiation due to the process of entry of food into the human body. There are some food ingredients that naturally emit natural radiation such as meat, milk, etc. West Java is one of the biggest cows milk producers in Indonesia. Therefore testing of cow’s milk produced is needed so that it can be seen how much natural radiation enters the human body from milk. In this study several milk samples were taken from a large farm in Lembang. The sample came from three different cowsheds. Then, it measured using an ORTEC gamma spectrometer with HPGe detector. Radionuclides observed in this study were K-40 and Ra-226. Based on measurement results, the natural radioactivity contained in cows milk is below the permissible standard and safe for consumption.