The authors are studying generation from hot water and latent heat of LNG in a LNG satellite facility. The latent heat of LNG consumes about 280kWh in the LNG satellite facility of vaporization value 2t-LNG/h. The Stiring engine can obtain electrical power using the latent heat of LNG. A LN_2 vaporization test system was made using a 20W Stirling engine. In this test, data of Stirling engine operation and LN_2 vaporization for basic study was obtained. The balance operation condition of steady state vaporization and Stirling engine operation was confirmed in this experiment. In this paper, the experimental results at vaporization test system using Stirling engine are described.