The invention belongs to the technical field of yachts and discloses a capsizing and sinking preventing archaistic yacht. The capsizing and sinking preventing archaistic yacht comprises a yacht body. The surface of the yacht body is paved with a deck, the deck is provided with an archaistic cabin, the part, between an archaistic coaming and a shipboard, of the deck is provided with a vegetation placement groove, vegetation placement vessels are fixedly installed in the vegetation placement groove, and plants are planted in the vegetation placement vessels. The bottom of the yacht body is fixedly connected with an air bag, a groove is formed in an inlet of the deck, a first spring is connected into the groove, a pedal is connected with the free end of the first spring, and the upper plane of the pedal is flush with the deck. The capsizing and sinking preventing archaistic yacht further comprises an air cylinder. The air cylinder comprises an air cylinder body, an air cylinder piston rod is arranged in the air cylinder body in a sliding mode, an air cylinder air outlet is formed in the bottom of the air cylinder body, the air cylinder piston rod penetrates through the groove from bottom to top and is fixedly connected with the pedal, and the air cylinder air outlet is matched with an air bag opening. By means of the technology, it can be guaranteed that the archaistic yacht cannot capsize or sink.