The invention discloses a mass spectrum rapid enrichment-thermal analysis membrane sample introduction apparatus and an application. The apparatus comprises an enclosed cavity, and a heating wire whose outer surface is sleeved by a tubular enrichment membrane passes through the center of the cavity; a sample inlet and a sample outlet are arranged on the wall of the cavity, the sample inlet is connected with a sample pool through a sample induction pipe, the sample outlet is connected with a tail gas pipe or a waste liquid pool through a sample discharge pipe, and a sampling device is arranged on the sample introduction pipe or the sample discharge pipe; the wall of the cavity is provided with a sweeping gas inlet and a sweeping gas outlet, the sweeping gas inlet is designed in a tee structure, one end communicates with an external gas source, one end is empty, and the other end is directly connected with the wall of the cavity; the enclosed cavity is connected with a sample introduction capillary of a mass spectrometer through a valve; and the sweeping gas outlet is connected with the tail gas pipe or the waste liquid pool through the sample discharge pipe. The apparatus provided by the invention is combined with a mass spectrometer for application, sample preprocessing is unnecessary, and the apparatus is suitable for quasi online mass spectrometry of semi-volatile organic compounds (SVOCs) in an environment.