In one embodiment of the present invention, a first test tube including therein a dehydrated sample containing a sugar chain and a labeling agent solution made of 2-aminopyridine/acetic acid are stored in a well-closed container with the first test tube and the labeling agent solution secluded from each other. The labeling agent solution is heated, and the 2-aminopyridine is evaporated so as to be in contact with the sugar chain, thereby obtaining a pyridylamination sugar chain from the sugar chain. As a result, it is possible to provide the saccharide fluorescence labeling apparatus and the saccharide fluorescence labeling method whereby it is possible to simplify and ensure an operation for reacting saccharide into the pyridylamination sugar chain.