The invention discloses a two-dimensional turbulence sensor of an orthogonal cantilever beam structure, comprising a probe, a sheath, a front beam, a first sensitive component, a conversion connector,a back beam, a second sensitive component, a rear seat, a sealing rod and a conditioning circuit; The probe is mounted on the front end of the sheath, the front beam is mounted inside the front section of the sheath and placed vertically, the first sensitive component is mounted on the front beam; the front end surface of the conversion connector is provided with a vertical notch, the tail of thefront beam is inserted into the vertical notch, the rear end face of the front beam is horizontally provided with a horizontal notch, the head of the rear beam is inserted into the horizontal notch,the second sensitive component is mounted on the rear beam; the front beam and the rear beam are orthogonally distributed in a space to form a cantilever beam structure; the first sensitive element and the second sensitive element are both connected to the conditioning circuit. The two-dimensional turbulence sensor with orthogonal cantilever beam structure achieves high-resolution observation fortwo-dimensional physical characteristics and spatial features of turbulent flow, and provides high-reliability detection means for research on formation and disappearance mechanisms and motion trajectory of micro-scale turbulence.