The Maternal Mortality Rate (MMR) in Indonesia is the highest in the ASEAN region. One effort that could be done to reduce MMR in Indonesia was by providing education and information on good nutrition. High protein content in tempe would be used to meet the body's protein needs such as body tissue formation, especially in pregnant and lactating women. The limited information about tempe as a potential protein source for pregnant and lactating women caused the need to conduct socialization, especially in Tangerang, the activity carried out by socializing the benefits of tempe as a source of protein. The target activities were pregnant and lactating women in Kotabumi, Tangerang as widwifery practice work area. The results of the initial data collection indicated that the knowledge possessed by pregnant and lactating mothers did not fully understand about the potential of tempe. After socialization, it was seen that mothers' understanding could increase based on discussion session.