The pearl of the Indian Ocean, Sri Lanka, reflects the long history of its nations. From archaeological evidence of prehistoric settlements and prehistoric humans of Balangoda (Deraniyagala, 1998) to modern kottu food such as American pizza; render the wide cultural diversity in Sir Lanka. By analyzing the definition of cultural heritage in the Sinhala language, the definition given in the legislations of 1940 and its relationship with the Athens Charter and the UNESCO Convention of 1954, I will demonstrate the vision of cultural heritage rooted in society through the legal definition. Furthermore, I will offer criticism and recommendations for a better approach to defining cultural heritage in Sri Lanka in a broader context. According to the Sinhala language, the word "Sanskruthika Urumayan" reflects the translated form of the English word cultural heritage. The word “Sanskruthiya” means culture and “Urumayan” means remaining forms both tangible and intangible from the past to the present. Considering the legislative definition that I have chosen to define cultural heritage under the laws of Sri Lanka, it is important to see the period of its origin. Sri Lanka, called Ceylon, was colonized by the British throne, from the early 1830s to February 4, 1945, Independence Day (quote). Therefore, the following legislative document of Sri Lanka was developed in 1940 under colonial rule before independence and the word referring to cultural heritage is antiquity. According to the Ceylon Antiquities Ordinance of 1940, it recognizes as ancient monuments all monuments lying, lying or found in Sri Lanka (Ceylon) if they are dated before 1815. Furthermore, it had defined a monument as "temple, church , monument, other structure or erection...... middle of paper ......ity in cultural heritage these aspects must be included. The inclusion of trees in the antiquarian materialist system based on the historical aspect must change according to the Belief system of Sri Lanka. Because considering the context of beliefs in Sri Lanka, especially Buddhists have historically and spiritually important trees like Sir Maha Bhodiya (sacred symbol of Buddha) which was planted in the 3rd century BC (World Heritage Convention of 'UNESCO).Therefore, inclusions of heritages such as nature should accept spiritual values. Furthermore, it should extend to all ethnic groups of Sri Lanka. Although the definition does not specify the separate ethnic groups to have diversity in the country, it is necessary to identify the heritages of different nationalities in Sri Lanka. Furthermore, the issue of ownership must change because the value of each asset cannot be measured on a large scale.