A fused salt storage tank for an experiment comprises a salt fusing pump (1), a glass cover plate (2), a manhole (3), a ladder (4), a lighting lamp (5), a first thermocouple (6), a second thermocouple (7), a high temperature resistant fan (8), an auxiliary heater (9), a liquid level meter (10), a main heater (11), a salt discharging tank (12), a salt discharging pipe (13), a salt discharging valve (14), a supporting structure (15), a tank body (16), a heat preserving material (17) and a salt returning pipe (18). According to the fused salt storage tank for the experiment, the salt fusing speed is increased in a convection heat exchange manner, and the fused salt storage tank for the experiment is suitable for the occasion where the experiment needs to be intermittently performed.