To provide a gyroscopic sensor provided with good sensitivity and easiness of formation.

A support frame 1 and a base 2 arranged inside the support frame 1 are connected with first to fourth beams 3, 4, 5, 6. The first beam 3 and the second beam 4 are arranged on the same line through the base 2, while the third beam 5 and the fourth beam 6 are arranged on the same line through the base 2. The first beam 3 and the third beam 5 are arranged in parallel. First and second oscillator support shafts 8, 9 are formed so that they are on the same line through the base 2 and protrude from the side of the base 2. A first oscillator 11 is fixed at the tip of the first oscillator support shaft 8, while a second oscillator 12 is fixed at the tip of the second oscillator support shaft 9. A displacement detection section 13 for detecting the displacement of the base 2 is formed on the surface of the base 2.