The invention relates to a method for checking the enamel scale explosion resistance of a cold-rolled steel plate. The method comprises the following steps of: cleaning a test sample; fastening the test sample between an electrolytic cell A and an electrolytic cell B; controlling temperature of electrolyte at 30+/-0.5 DEG C; pouring the electrolyte into the electrolytic cell B; keeping the test sample at an oxidation potential of hydrogen by using a potentiostat when Pt and the test sample serve as a cathode and an anode respectively; when residual current falls below 1.5 microamperes, pouring another electrolyte into the electrolytic cell A; when the Pt and the test sample serve as an anode and a cathode respectively, switching on the potentiostat immediately and charging hydrogen to the test sample; and when the current of the anode is stabilized for 8 to 30 minutes, stopping the experiment and calculating to obtain a TH value. By the checking method, the equipment is simple, easy in operation and high in sensitivity and stability; moreover, an experimental solution is nontoxic, safe and environment-friendly, so a great economic benefit and an obvious social benefit are brought in.