The invention provides an ultrasonic-assisted rock cutting and coring testing platform. One side of the top of a gantry-shaped steel structure on a platform soleplate is fixedly connected with a drilling footage driving device, guide rails on two sides of a support are connected with a rotation driving motor and an ultrasonic driving device, the rotation driving motor is connected with a coring device, and the platform soleplate is provided with a rock core clamp. Compared with a traditional drilling sampler, the ultrasonic-assisted rock cutting and coring testing platform has the advantages of lower power consumption, small supporting force, light weight and the like, and a rotary ultrasonic drilling sampler can efficiently complete a rock sampling task by utilizing the impact of ultrasonic and the coupling of the rotation of the motor under the situation of small power consumption and small supporting force. The ultrasonic-assisted rock cutting and coring testing platform can provide a testing platform for the rotary ultrasonic drilling sampler and can acquire drilling pressure, torque, drilling footage rate and the like of an ultrasonic drilling device in the drilling and sampling process in real time, so that technical support can be provided for optimized design of the ultrasonic drilling device.