The present invention discloses a bottom plug pre-installed with heat resistance wire and corresponding locking base for single-shot firework, the top of a plastic plug (1) provides a heating resistance wire slot (4), a heating resistance wire (3) is fixed into the heating resistance wire slot (4) and two ends thereof are respectively electrically connected with the two metal conductors (12), the other ends of the two metal conductors (12) are respectively electrically connected with two plate-like electrodes (13) and fixed to the bottom of the plastic plug (1), the bottom of the plastic plug (1) provides an upper clamping structure (17), a locking base (2) provides a lower clamping structure (8), the lower clamping structure (8) is correspondingly clamped with the upper clamping structure (17) of the plastic plug (1), the top of the locking base (2) is provided with two flexible electrodes (5), the two flexible electrodes (5) are respectively aligned with and electrically connected with the two plate-like electrodes (13) of the plastic plug (1), and the flexible electrodes (5) are electrically connected to a circuit connecting socket (10) fixed onto the locking base (2). The present invention makes the bursting energy of the lifting charge highly efficient at projecting the firework effects, has a high security coefficient, stable and reliable performance, and is convenient to use.