Lead-in optical cable assembly and preparation method thereof

The invention discloses a lead-in optical cable assembly and a preparation method thereof, and the lead-in optical cable assembly comprises an optical fiber connector which comprises an insertion core; a branching groove which is formed in the branching device, and the branching groove penetrates through the two opposite ends of the branching device; a hollow cable, of which one end penetrates through the branch groove, and the other end is connected with an optical fiber connector; a leading-in optical cable, of which the front end penetrates through the optical fiber groove, wherein the internal optical fiber of the leading-in optical cable extends out from the front end to form a bare optical fiber, and the bare optical fiber penetrates through the hollow cable, extends into the optical fiber connector and is connected with the insertion core. Pre-terminating of the optical cable and the optical fiber connector is achieved through the hollow cable and the branch grooves. The structure overcomes the defects