A flexible composite pipe connector easy to detach comprises a main body composed of a cylindrical left connector body and a cylindrical right connector body, wherein the outer end of the left connector body and the outer end of the right connector body are connected with a left pipeline and a right pipeline respectively, the inner end of the left connector body and the inner end of the right connector body are connecting ends used for connecting the left connector body and the right connector body, the outer surface of the inner end of the left connector body and the outer surface of the inner end of the right connector body are each provided with an inclined face from inside out, the diameter of the inner end of the left connector body is larger than the diameter of the outer end of the left connector body, the inner end of the left connector body is provided with an outer tightening sleeve, the outer surface of the inner end of the right connector body is the inclined face, a female thread is arranged at the inner side of the right end of the outer tightening sleeve, a male thread is arranged on the outer surface of an inner tightening lining piece, the male thread is connected with the female thread in a snapped mode, the inner tightening lining piece and the right connector body are connected in a pressed mode through the corresponding inclined face, and the outer surface of the outer tightening sleeve is in a square shape. By means of the flexible composite pipe connector easy to detach, the problem of connection of existing flexible composite pipes is solved, and the connector has the advantages of being high in connection strength, good in sealing performance and easy to detach.