Abstract: The disclosure relates to an access device for a working apparatus, more particularly for a mobile crane, comprising a cheek, at least two steps which are laterally and vertically offset with respect to one another and are each supported on the cheek pivotably about a vertical first rotational axis, and a guide bar which connects the steps to one another. The guide bar is pivotably connected, at the end of the step opposite the cheek, to each step via a connection element such that the steps can be jointly moved about their first rotational axes from an access position, in which the steps project laterally from the cheek and in which the access device can be walked on, to a transport position, in which the steps rest against the cheek in a space-saving manner, and vice versa. The disclosure further relates to a working apparatus, more particularly a mobile crane.