A Muslim must have a high attention on food with the development of fast food because it is related to maqasid sharia which aims at the benefit of the world and the hereafter. Maqashid sharia as a basic human need provides guidelines, among others, safeguarding religion, protecting the soul, protecting the mind, protecting the offspring, and protecting property. Indonesia with the majority of Muslim communities must guarantee with the regulations made through the Halal Assurance System (HAS) of food products. Herbal Chicken Ponorogo is one of the restaurants that offers halal certified processed food in Ponorogo. The importance of halal certification or halal label obtained makes Herbal Chicken Ponorogo have an obligation to implement the Halal Assurance System. The method used to analyze food halal is Halal Assurance System (HAS) 23102. In its application Herbal Chicken Ponorogo under Moh. Husni Thamrin has his own policy in its management and still adheres to the halal principle. Observations made at Herbal Chicken Ponorogo show that the application of the halal guarantee system is relatively good. Observation of 11 halal aspects in HAS 23102 has been fulfilled by 7 halal aspects, namely (1) halal policy, (2) materials, (3) production facilities, (4) traceability, (5) handling products that do not meet the criteria, (6) internal audit, and (7) management review. In critical activities, almost all procedures have been fulfilled by Herbal Chicken Ponorogo except purchase procedures, visitor rules, and employee rules in writing.