The present invention relates to a fuse tester for checking a detonating function of an electronic fuse. As a fuse tester for testing a fuse which a groove is formed for a member to be inserted in one side and which generates a current in order to perform a detonating function when a predetermined condition is satisfied, the present invention comprises: a connecting unit which is formed to engage in the groove, is detachable from the groove, forms a closed circuit with a circuit prepared in the fuse when it is attached, and receives a current generated from the fuse; and a lamp unit which is formed at one end of the connecting unit, is connected to a handle unit made of an insulating material and the connecting unit, and functions when a current is transmitted through the connecting unit.
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