An entrance device is provided to facilitate the entry from the ground level through an entrance provided in a house (1) or the like and not being located at the ground level. The entrance device comprises at least one support member (9) arranged to be attached to the house (1) or the like and at least one step plate arranged to be supported by means of the support member (9). At least one frame member (19) having four edge sides is arranged to be supported in an orientation projecting from the house (1) or the like by means of the support member and this frame member has a flange member on which the step plate rests. The support member comprises a bracket having two legs (10a, 10b) provided in a perpendicular relationship to each other, one of which is arranged to be attached to a wall of the house (1) or the like by means of an attachment member (11) and the other is arranged to support the frame member (19).