A multi-purpose crop cultivation device capable of water culture is included. The present invention comprises: a supporting base placed on the ground such that the position thereof is fixed; a bed supporting part on which a cultivation bed, filled with a predetermined amount of culture soil or a culture solution such that crops are planted therein, is placed and supported; a pillar having a predetermined length and assembled between the supporting base and the bed supporting part; and a height adjuster having a predetermined length, having a male screw part formed on the outer surface thereof and screw-coupled to a female screw part provided at the supporting base, and coupled to the lower end of the pillar or the bed supporting part so as to adjust the vertical height of the bed supporting part.
