The invention relates to the field of electric gyroscopes, in particular to a gyroscope adjustable in stability and movement locus. According to the gyroscope, by means of the cooperation that a speed-adjustable transmission motor and a mechanical speed adjusting unit are controlled to adjust the distance between a friction wheel and the center of the gyroscope, the speed adjusting range is enlarged, and adjusting and testing are facilitated; the position of the gravity center of the gyroscope is changed by controlling the distance between a balancing weight of a balancing weight unit and the center of the gyroscope; thus, the purposes that the stability performance and the movement locus of the gyroscope can be adjusted are achieved under the premise that working parameters of the motor are changed. The two characteristics of stability and the precession of the gyroscope can be vividly and visually displayed, players can deeply understand the operating principle of the gyroscope in the entertaining process, and the interestingness of the gyroscope is higher.