Battery short-circuit protection circuit and battery protection board of energy storage power supply

The embodiment of the utility model provides a battery short-circuit protection circuit and a battery protection board of an energy storage power supply. The battery short-circuit protection circuit comprises a sampling resistor, an MOS circuit, a short-circuit protection trigger circuit and an oscillation protection circuit, wherein the MOS circuit comprises a charging MOS tube and a discharging MOS tube, and the sampling resistor, the charging MOS tube and the discharging MOS tube are connected in series on the main loop; two ends of the sampling resistor are respectively connected with two input ends of the short-circuit protection trigger circuit, and an output end of the short-circuit protection trigger circuit is connected with the oscillation protection circuit and the discharge MOS tube; the short-circuit protection trigger circuit monitors short-circuit current flowing through the sampling resistor, and outputs a first voltage value to control the discharge MOS tube to be disconnected when the short-