The invention discloses an X-
ray tube control method, an X-
ray tube control device, an X-
ray tube control driving device and an X-ray generating device. The control method includes the following stepsthat: whether action signals of an X-ray tube are received is judged; and when the action signals of the X-ray tube are received, the amplitude and frequency of the
voltage driving signals of the rotating
electrode of the X-ray tube are changed with a
constant voltage-
frequency ratio from a time point when the action signals are received, so that the rotating
electrode of the X-ray tube is controlled to execute corresponding actions, wherein the
constant pressure-
frequency ratio refers to a condition that the ratio of the amplitude change value to frequency change value of the
voltage drivingsignals of the rotating
electrode of the X-ray tube is a constant value. According to the control method of the invention, the amplitude and frequency of the
voltage driving signals are increased with the
constant voltage-
frequency ratio, so that magnetic saturation phenomena can be avoided, the rotational driving force of the motor can be increased, the rotating speed of the motor can be improved, and therefore, the heat dissipation capacity of the rotating electrode can be increased; and the amplitude and frequency of the voltage driving signals can be decreased with the
constant voltage-frequency ratio, so that
hysteresis can be avoided, and therefore, the rotational driving force of the electrode can be decreased fast, and rapid braking can be realized.