The utility model relates to a detection apparatus for be used for assembled shear force wall coil way mud jacking density belongs to quality of building engineering detection technical field, the power distribution box comprises a box body, the host computer has in the box, be connected with the cable on the host computer, cable terminal is connected with the sensor, the box outside is provided with the detachable beam waist area. This technical scheme's detection device is when using, earlier place shear force wall mud jacking pipeline with the sensor and treat detection position, then utilize vibration excitation device to strike the excitation near the sensor, carry out analysis and comparison through the host computer to the elastic wave of receiving, thereby it detects to carry out the mud jacking density, and after adopting beam waist to take the design of structure, can make things convenient for the personal fixation cabinet of measurement personnel, can utilize both hands stationary sensor and operation vibration excitation device on one side, judge the wave form result of host computer on one side, convenience and practicality.