The invention provides a hybrid energy supply system for a high-voltage direct current breaker. The energy supply system comprises a high-frequency isolating transformer energy supply portion and a laser energy supply portion, which are arranged in parallel to realize redundant energy supply of the high-voltage direct current breaker. The technical solution provided by the invention can satisfy the electrical isolating condition at different levels on high levels, is comprehensive in function, improves the power supply reliability of the high-voltage direct current breaker, and ensures stable, reliable and uninterrupted operation of the high-voltage direct current breaker.