Global research revealed that 31% of food purchased ends up as waste. Losses due to food waste in Indonesia reached 4,701 trillion. Indonesia as a country with the largest Muslim population in the world should have a low food waste rate, but in reality it ranks second highest in the world with 300 kg of food wasted per capita per year totaling 13 million tons annually. If distributed, this amount could reduce poverty among Indonesians and improve food security. In addition, the loss in environmental aspects is also very dangerous, as piles of food waste can cause environmental pollution in the form of water, air and soil, thus having a wide impact on the health and safety of living things. In addition to having the largest Muslim population, Indonesia is also the country with the largest number of pesantren with a total of 31,385 pesantren. Sadly, food waste is still a problem in pesantren. Meanwhile, in maqashid sharia, hifdz bi'ah (protecting the environment) is important because the position of hifdz bi'ah is as a wasilah and support for the implementation of kulliyat al-khams. So the purpose of this research is to determine the right strategy to achieve zero food waste in the pesantren kitchen as an effort to improve food security by looking at its relationship with the hifdz bi'ah aspect of maqashid sharia. This research is a type of maxing method research, namely qualitative and quantitative with a phenomological approach with primary and secondary data sources, then observation data is collected using data collection methods, observation, documentation, and indepth interviews. After the data is collected, it is analyzed using deductive techniques and Analytical Network Process (ANP) which is processed with Super Decisions version 2.1.0 software, with stages; 1). Creating a model framework, 2). Quantification of the model, 3). Analysis of results. The results of this study show that the most prioritized problem in food waste in the kitchen according to the agreement of the respondents is the absence of strong internal regulations related to food waste originating from educational institutions. The most prioritized solution in overcoming the problem of food waste in the kitchen according to the agreement of the respondents is to make internal regulations of educational institutions that are strongly related to the issue of food waste. Meanwhile, the most prioritized strategy to achieve zero food waste in the kitchen is to create and strengthen the internal regulations of educational institutions specifically regarding food waste. In the aspect of maqashid sharia, the resulting strategy is in accordance with the concept of hifdz biah which all aims to protect the environment from the dangerous effects of food waste. The recommendations in this study are for pesantren, it is important as soon as possible to pay attention to strong and clear regulations to prevent food waste so that it can contribute to improving food security. Steak holders should pay more attention to the regulations related to food waste prevention in pesantren kitchens. Future research should explore the implications of this research model in pesantren.