The invention relates to a lifeboat diesel engine inversed non-stopping device which comprises a lubrication system and a respiratory system. The lubrication system comprises a machine body, an oil pump and an oil pan; the respiratory system is a diesel engine respirator; the oil pan is transversely provided with a separating plate which separates an oil pan cavity into a left cavity and a right cavity, the left cavity is arranged to be an oil trap, the right cavity is arranged to be an oil tank, and an opening of the oil tank is provided with a flange and is fixedly provided with an oil tank cover; the oil pump is a double pump with an independent oil inlet and oil outlet, up-down stacking is achieved, the upper layer is a lubricant pump, and the lower layer is an oil return pump; an oil inlet of the oil return pump is connected to the bottom of the oil trap, the oil outlet is connected to a lubrication oil tank; an oil inlet of the lubricant pump is connected to the lubrication oil tank, an oil outlet of the lubricant pump is communicated with a machine body main oil way; and a breathing tube is arranged on the oil tank cover. According to the lifeboat diesel engine inversed non-stopping device, the gathering function and the storing function of lifeboat diesel engine oil pan bearing oil are separated, and the diesel engine can normally work during longitudinal or transverse overturning inversion.