Abstract: At present,the common detection methods for the performance detection of cable connector contact couple are visual inspection or simple tools to determine whether there is a fault such as bending pin,shrinking pin/shrinkage hole and aperture change.These two methods are unable to quantitatively detect the force value of plug and pull force and contact holding force of the contact couple,so as to reflect whether the contact couple mechanical performance is qualified.A set of automatic detection device based on visual identification technology is designed,which is used for online detection of the force value of plug and pull force and contact holding force of the contact couple,and judging whether the mechanical performance of the cable connector contact couple is qualified or not.