An environment-friendly planting device with automatic percolation and irrigation of hermetic liquid includes a planting container and draining and irrigating pipes. An inner part of the planting container is orderly provided with a first layer having ceramic aggregates and sand, a second layer having medical stones, sand and perlites, and an organic substrate layer from bottom to top. The first layer and the second layer are for storing water. The first layer has a first draining and irrigating pipe having a U-shaped inner cavity. The second layer has a second draining and irrigating pipe having a U-shaped inner cavity as a snorkel. The first draining and irrigating pipe and the second draining and irrigating pipe respectively have a first end connected to a vertical water inlet pipe, and a second end sealed. A bottom of the water inlet pipe is sealed. The organic substrate layer is for cultivating plants therein.