The invention discloses an ultrasonic roadway surface convergence analyzer. The ultrasonic roadway surface convergence analyzer comprises an installing pole, an instrument cabin, a left ultrasonic transceiving
transducer, a right ultrasonic transceiving
transducer, a lower ultrasonic transceiving
transducer and other parts. The analyzer is fixed to a top plate and a bottom plate of a mine roadway or the two sides of the mine roadway through the installation pole. After initialization, the shape and dimensions of the initial section of the mine roadway are recorded, so that an initial image of the section of the roadway is obtained; after the analyzer enters a normal working state, the left ultrasonic transceiving transducer, the right ultrasonic transceiving transducer and the lower ultrasonic transceiving transducer are started according to set time, ultrasonic signals are emitted to the top plate, the bottom plate and the two sides of the roadway and are collected, and the collected ultrasonic composite echo signals are processed through a processor, so that a composite image of the section of the roadway is obtained, wherein compared with the initial image, the deformation and convergence amount of the top plate, the bottom plate and the two sides of the roadway are obtained. The ultrasonic roadway surface convergence analyzer is easy to install, stable and reliable in measurement and capable of achieving non-contact online monitoring of the convergence amount of the whole section of the top plate, the bottom plate and the two sides of the mine roadway, thereby providing online
monitoring data of the convergence amount of the whole section for the special project of the mine roadway surface convergence amount.