The invention belongs to the field of cement strength examination equipment and particularly relates to a cement mortar vibration-compaction system. The cement mortar vibration-compaction system comprises a stander, a vibration module, a vibration-compaction module, a loading module and a controller, wherein the vibration-compaction module is mounted on the stander above the vibration module; the vibration module is used for driving the vibration-compaction module to vibrate up and down; the loading module is fixedly mounted on the stander and is connected with the vibration-compaction module; and the controller is used for controlling each module to cooperatively work. The cement mortar vibration-compaction system is mainly used for preparing cement mortar samples, and automatic feeding and filling of cement mortar are realized; the automatic feeding of the cement mortar is realized by virtue of the loading module, and the automatic shakeout of the cement mortar in a triple iron test mold is realized by virtue of mutual cooperation between an air cylinder and a shakeout motor; and meanwhile, different types of cement mortar samples can be simultaneously prepared, so that the preparation time of the cement mortar is shortened, and the labor strength of workers is reduced.