The invention relates to a detecting and press-fitting mechanism. A translation mechanism is mounted on a lifting mounting plate of a lifting mechanism. Z-axis press-fitting mechanisms are mounted on a translation sliding plate of the translation mechanism. A force transmission rod is mounted on one side of the lower portion of a Z-axis movement plate of each Z-axis press-fitting mechanism. A sliding rail fixing block is mounted on the other side of the lower portion of each Z-axis movement plate. A pressing head is mounted on the inner side of each sliding rail fixing block in a sliding manner, and a pressure senor is mounted above each pressing head and located under the corresponding force transmission rod. A profiling block clamping mechanism capable of correcting the position of a part is mounted on the outer side of each sliding rail fixing block. A CCD detection mechanism capable of detecting the position of the part and detecting whether the part offsets or not after being press-fitted to a product is mounted on the front side of each Z-axis movement plate. The CCD detection mechanisms need to automatically detect the reference edge angle and position coordinates of the part located on the product before press-fitting, and the press-fitting force generated after press-fitting can be controlled and fed back in real time.