Abstract: A LED luminous pen includes a penholder (1), a pen core (2), a battery (3), a luminous circuit board (4), and a LED (5). A rotary assembly (8) can move the pen core (2) up and down restrictedly and is sleeved at upper portion of the pen core (2). The penholder (1) at least includes an upper penholder portion (11) and a lower penholder portion (13), an anode of the battery (3) is electrically connected with an anode input (41) of the luminous circuit board (4), a cathode of the battery (3) is electrically connected with a conductive spring (7) through a metallic core cap of the pen core (71) and a cathode spring (72). When the pen core is in use, the strength of the core will not be transmitted to the battery, so that it can make every contact in LED luminous circuit conduct well.