A contact device and an electromagnetic relay are provided. The contact device is provided with a pair of fixed contact; a movable contact which comes into contact with a pair of fixed contacts and separates away therefrom; a movable shaft moving in an axial direction so that the movable contact comes into contact with the pair of fixed contacts and separates away therefrom; and a partition wall member disposed at the side opposite to the pair of fixed contact of the movable contact and including a partition wall disposed around the movable shaft, and interlocked with at least one of the movable contact and the movable shaft.