The utility model provides a kind of pull formula synchronous guiding mechanism with adjusting function, including upper rail body, lower rail body and the middle rail body supported between upper rail body and lower rail body, and the middle rail body is equipped with synchronous operation device, and synchronous operation device includes fixed component group, front guide wheel, rear guide wheel, transmission part, and the front guide wheel, rear guide wheel is respectively installed in the front part and rear part of middle rail body, and the front end and rear end of transmission part are respectively wound in front guide wheel, rear guide wheel, and fixed component group is equipped with adjusting mechanism, and the positioning piece, movable piece, adjusting control piece, adjusting connecting piece structure cooperation of adjusting mechanism, adjusting control piece can rotate while driving adjusting connecting piece to move, to push movable piece to move, to adjust the distance between movable piece and positioning piece. Simple structure can reduce occupied space, and has adjusting transmission tension, convenient operation, improve synchronous performance, improve operation stability, ensure the use quality of product.