The purpose of this study is to discuss the ecological life of Henry David Thoreau in the Walden with the minimalism of modern meaning in Minimalism Essential essays, by Joshua Fields Millburn & Ryan Nicodemus. Thoreau spent two years and two months experimenting with the minimum amount of living, clothing, meals and residential space in the Walden forest. Milburn & Nicodemus judge that modern rich materials do not provide a happy life and choose the simplest life, what they really want to do by abandoning their social status, luxury housing and high salaries. Both practice minimalism in life, beyond 160 years of time and space, they pursued the same life based on minimalism. This claim calls for a wake-up call in the modern society, where today’s consumption mechanisms, leading to mass production, mass consumption and mass disposal, cause garbage problems that can not be sustained and cause catastrophic damage to the ecological environment. Reading Walden as a minimalism is different from the subjects that have been shown in the domestic studies related to Walden which was discussed from the viewpoint of nature of the nineteenth century.