The bundled piezoelectric motors combine several actuators together and improve the output power considerably. However, the working efficiency decreases due to mutual interference between actuators. This paper presents a adaptive driving foot stator structure consisting of leaf springs and proof masses to reduce the mutual interference between actuators in the bundled linear motors.The contact vibration model of driving foot is established and the influences of various parameters on the output performance are analyzed.A prototype of linear motor is designed and fabricated.The experimental results show that the output force of the motor increases with the increase of preloading force, and the maximum output force of the motor can reach 1.8 N when the peakpeak value of the excitation voltage is 30 V.The larger the excitation voltage is, the greater the maximum output force of the motor is.Through the comparison of the load characteristics of the sixlegged and fourlegged motors, it is proved that each driving foot can effectively act on the sliding rail, the mutual interference between the driving feet is reduced, the output efficiency is improved,and the output force of the motor can increase linearly with the increase of the number of driving foot.