High-capacity gel pen

The utility model discloses a large-capacity gel pen which comprises a pen holder (1), a pen cap (2) and a pen point (3), a printing ink cavity (4) is arranged in the pen holder (1), and a smooth layer (5) is laid on the inner side wall of the printing ink cavity (4). A sealing cover (6) and a refill mounting piece (7) are respectively arranged at two end parts of the ink cavity (4); a needle tube refill head (8) is arranged in the middle of the refill mounting piece (7); an internal thread section is arranged on the inner side wall of the printing ink cavity (4); the pen point (3) is connected with the pen holder (1) through an internal thread section, and a channel for a needle tube pen refill head (8) to pass through is formed in the middle of the pen point (3); a rubber pad (9) is arranged on the inner side wall, away from the end of the pen holder (1), of the pen point (3). The ink pen is convenient to produce and has the advantages of being high in ink utilization rate, high in writing smoothness, envir