Tritangtu is a Sundanese philosophy of life that means harmony. The main core of the Tritangtu concept focuses on the harmony built by the middle sineger, which can be translated as the middle way or solution between the opposing or contradictory dualities. Sundanese cultural artefacts are produced by the ethnic Sundanese people who have a specific purpose based on the thought they profess, tritangtu. lisung and bale are the Sundanese cultural artefacts that carry tritangtu’s values. This study aims to analyze and discover the concept of tritangtu contained in leuit, lisung and bale, which are the example of Sundanese cultural artefacts that contain the concept of tritangtu. And to prove that the Sundanese ethnic community implements the tritangtu concept in various aspects of life, one of them is in the manufacture of field furniture. The descriptive qualitative method is used to study the tritangtu philosophy, a belief held by the Sundanese ethnic community. Robert Stecker’s biographical criticism model approach method is also used to study the actual intentionalism and work meaning. The actual intentionalism method consists of two models, biographical criticism and proper aim. Artefacts of the Sundanese cultural Objects that are used to meet daily needs and fulfil functional aspects also accommodate systems of symbolic and philosophical meaning that contain life instructions for the Sundanese ethnic community. Sundanese identity is not just about its cultural products but the Sundanese way of working and thinking in creating cultural products. Sundanese people created Sundanese cultural products based on their belief in the tritangtu philosophy (lampah, ucap, and tekad)