To establish a gas chromatographic method for the determination of 1, 4-butanediol migration,to confirm whether the migration amount of 1, 4-butanediol in food contact materials and products meets the national standard limit requirements. The migration test was carried out on the degradable plastic products, and the 1, 4-butanediol in the migration solution was separated, qualitatively and quantitatively determined by gas chromatography. The detection limit of this method was 0.4 mg/kg, and the concentration of 1, 4-butanediol has a good linear relationship with the chromatographic peak area in the range of 0~10 mg/kg, with a correlation coefficient more than 0.995 and a spike recovery for the sample between 95.2% and 108.7%. The relative standard deviation of the determination results was between 5.9% and 9.7% (n=10). This method is suitable for the detection of 1, 4-butanediol migration of food contact materials and products.