Bee pollen trap suitable for collecting of pollen in a comb hive, comprising a housing, which is via an adaptor furnished with a suitable opening connectable to each disposable comb hive, so that through said opening in said adaptor and therefore also through said pollen trap the bees are enabled to enter and to leave said comb hive, wherein a plurality of passages is arranged within said housing at appropriate distance apart from an inlet passage, which are arranged for passing the bees there-through, by which the pollen is removed from the bees and collected within a container, which is located below said passages. and is embedded within the housing by means of guides and is consequently displaceable in the longitudinal direction of the pollen trap housing, and wherein said housing is furnished with a covering plate, which is located above said passages and said container, and is serving for protection of such collected pollen against intrusion of moisture and impurities, characterised in that said pollen trap comprises two mutually separated passages (7,8), through which the bees are enabled to move towards the hive or in opposite direction, namely an inlet passage, which extends from the inlet opening of the pollen trap through said passages for removal of pollen from the bees in the area above the pollen collecting container and continues towards the hive, as well as an outlet passage, which extends from the hive towards the outlet recess and by-passes said passages, and wherein said housing comprises at least one area, in particular an optionally removable cover consisting of water resistant material, which is arranged above said covering piate, so that said covering plate is located within the housing below said cover and at a sufficient distance apart from said cover, so that between the cover and said covering plate a gap is formed for the purpose of passing the bees and drones there-through, which defines said outlet passage with said outlet recess, and wherein said inlet passage and said outlet passage are separated from each other on the one hand by means of Essentially vertical perforated wall, which is furnished with said passages for removing pollen from the bees and arranged above said pollen collecting container, and on the other hand by means of said covering plate, which extends substantially in a horizontal direction within said housing above said inlet passage closely to said perforated wall and at a sufficient distance apart from the cover of said housing, said perforated wall is by means of a suitable actuator, which is located outside of the housing, pivotable around an axis, which extends transversally in a horizontal plane, and can also be fixed in each desired position at each desired inclination relative to said horizontal plane, wherein said perforated wall is uniformly conceived and consists of a plurality of horizontal bearing members (51, 51', 51"), which are equidistantly spaced apart from each other and each of them is furnished with a plurality of cantilevered protrusions (52, 52', 52"). which are in a direction along each corresponding bearing member (51, 51', 51"), equidistantly spaced apart from each other and are all directed in the same direction, wherein each of said cantilevered protrusions (52, 52', 52") is arranged perpendicularly with respect to each belonging bearing member (51, 51', 51") and extends towards each neighboring bearing member (51, 51', 51"), but ends at appropriate distance apart from said neighboring bearing member (51, 51', 51") and is slightly rounded on its terminal portion, which enables the bees to pass through such established passages between each two neighboring protrusions (52, 52', 52") on each particular bearing member (51, 51', 51") as well as between each particular bearing member (51, 51', 51") and each neighboring bearing member (51, 51', 51") upon entering the pollen trap and prior to entering the hive, and in that a grid is placed below said perforated wall with said passages and above said pollen collecting Container, which is adjusted to allow the pollen to pass there-through and extends above at least the majority of the silhouette of said container in the top view, and in that a flight board is mounted within the housing just below and just in front of the inlet passage, and is adjusted for enabling the bees to land prior to entering the pollen trap and rotatable around the transversal horizontal geometric axis with the possibility of fixation in each appropriately inclined position relative to the horizontal plans by means of a suitable actuator, which is located outside of the housing, wherein said flight board is furnished with at least one throughout passage, which is located adjacent to said axis and the inlet passage and allows to the bees to pass there-trough from the bottom side of the flight board to the top side thereof, and in that the outlet passage us on the side facing towards the opening of the adaptor completed with a further, at least partially widened passage, wherein an additional wall is placed within said additional widened passage adjacent to the pollen collecting container, and is pivotable around the transversal horizontal geometric axis with the possibility of fixation in each desired inclination relative to the horizontal plane by means of a suitable actuator, which is located outside of the housing.