The utility model discloses a connect a groove, its characterized in that: including controlling two C shape tracks and installing the groove between two tracks, the track is used for installing in the marginal health department of being close to of desktop, install in order to slide and pivoted combined movement on the track in groove, the track is transversal personally submit I -shaped, groove both ends are equipped with the jack catch card in the track, straight part below the track is equipped with locking screw and is used for locking at the desktop edge, groove includes flat board and riser that interconnect is in the same place, the space of right angle shape groove for placing the pen that forms between flat board and the riser, is, flute length degree 20 30 centimetre, can lie prone on the desktop and need not or rotatoryly put the pen at the back to the desktop in groove, the brush that is used for clearing up an inslot dust is still put to inslot. The beneficial effects of the utility model are that, simple structure, convenient to use properly place pencil, sign pen, prevent that the pen from falling to be broken on the ground, avoid often bowing to pick up the pen.