PROBLEM TO BE SOLVED: To provide a vaporizing device of low-temperature liquefied gas that can effectively restrain the propagation of vibration generated in each vaporizing pipe due to the vaporization of the low-temperature liquefied gas without an increase in thermal stress.SOLUTION: A vaporizing device 10 of low-temperature liquefied gas comprises: a plurality of vaporizing pipe blocks 11 including a plurality of vaporizing pipe panels 16; a distribution pipe 12 and a collection pipe 14 connected to the respective vaporizing pipe blocks 11; supply side inter-block throttles 13 and delivery side inter-block throttles 15 that restrain the propagation of pressure pulsation between the vaporizing pipe blocks 11; inter-panel distribution pipes 17 connected to the respective vaporizing pipe panels 16 included in the common vaporizing pipe blocks 11 and the distribution pipe 12; inter-panel collection pipes 19 connected to the respective vaporizing pipe panels 16 and the collection pipe 14; and inter-panel restr
