The article will take night public art landscape as the research object, and through interpreting the typical cases of night public art landscape practice at home and abroad, summarize its presentation types and interactive features, and dig deep into the publicity and humanity contained in this interactive field. The purpose of this paper is to explore the important role of interactive design in promoting the sustainable development of people and cities from the perspective of public art, taking the night landscape as examples. The design of public art landscape at night will inevitably return to the core idea of“people- oriented”, showing a development trend from the coexistence of technical forms and interactive behaviors to the deep- seated emotional symbiotic interaction.