Smart fish trap implies the technical improvement of the fish trap as a fishing tool with the aim of solving some of its shortcomings in order to improve its properties for more selective fishing of target species and to reduce its negative impact on the environment. Smart fish trap is a new technical solution for the automated release of the bait that is placed in the tip so that it actively attracts the target fish species all the time while it is submerged in the sea, and at the same time prevents smaller fish or unwanted species from eating the bait. It is also planned that the different design of the troughs with a movable system of the entrance part ensures that the fish enter more easily and exit more difficultly from the trough itself. The top will greatly affect the selectivity of the catch and have a positive effect on the reduction of unwanted catches.