The invention relates to a device for setting up a work platform on an uneven ground surface, which device comprises setting means as well as a work platform to be set up on said ground surface by the setting means. The invention is aimed at providing a functional solution to the above problem, which enables the fisherman to install his fishing-tackle and fishing materials quickly in a more effective way and to practise his hobby at fishing grounds where so far this was usually difficult or even impossible on account of the condition of the soil. The object of the invention is to provide a device of the above kind which provides an additional functionality for the sport of angling, and according to the invention the setting means comprise two slightly spaced-apart sections (10, 20), each section (10, 20) being made up of two section members (11, 12) which are movable with respect to each other, a first section member (11) of each section (10, 20) being provided with at least one supporting element (16) near a first end (11a) thereof and the other section member (12) being provided with at least one outrigger element (14) near its first end (12a).
