Chicken manure waste resulting from the process of raising broiler chickens has an impact on the surrounding community and employees. Using Life Cycle Assessment (LCA), an analysis of the existing chicken breeding process with the scope of gate to gate is carried out. There are two outputs of chicken cultivation results, namely broiler chickens and non-product in the form of chicken droppings. Based on processing using SimaPro v.9 software with IMPACT 2002+ method, the output of chicken manure has the most impact on the environment. The biggest impact produced in the form of human health. Through the analysis of the problems, recommendations are given for improvement using a sensitivity analysis approach to reduce the impact of chicken farming output. From this research we obtained that substituting soybean meal into fish meal and raising 20% as a food raw material are alternatives that can reduce the environmental impact. Recommendations for processing chicken manure can use circular economy principles i.e. recycle by processing chicken manure into fertilizer. Some other alternatives can sell chicken manure directly to the fertilizer industry distributor.