Affected by slenderness ratio of drilling string, anisotropism of formation, unstable parameter of operation, drilling bit suffers a complex vibration of six degrees of freedom with multiple dominant frequency, dimension and amplitude. It seriously restricts the safety and efficiency of drilling operation. According to the theory of rigid motion, the angular velocity reckoning is difficult by the current planar array scheme, and central fluid channel cannot be reserved by the conventional space array. In this paper, a spatial array with a central fluid channel was proposed. Least squares and neural network was also established to reckoned the vibration parameters. The average error of reckoned vibration parameters is less than 5×10-3, which meet the application requirements of drilling operation. The proposed method and array scheme provide the data base to the vibration conditioning of drilling string, and contribute to the research of sensor vibration test.