The invention relates to a water current vibrating multi-oscillator piezoelectric energy accumulator, and belongs to the fluid power generating field; a housing is provided with a flow passage hole; the end portion is provided with a vertical plate having a flow passage hole and a boss; the left side and right side of the boss are provided with piezoelectric oscillators of the same number; when the piezoelectric oscillator number arranged on one side of the boss is >1, a pad is pressed between fixed ends of two adjacent piezoelectric oscillators; the piezoelectric oscillator is formed by bonding a substrate and piezoelectric patches; the substrates of the piezoelectric oscillators on two sides of the boss are arranged nearby; the other end of the piezoelectric oscillator is provided with a push block; the push block is arranged on one side of the piezoelectric oscillator substrate, and the other end abuts against an exciter swing arm; the ear plate of the exciter with a hollow turbulent flow body is provided with a shaft hole; a guide pillar penetrates the shaft hole and is fixed on the housing side wall; the exciter is fixed on the top and bottom side walls through the ear plates, guide pillars, and springs; the piezoelectric oscillator is a flattened structure before installation and a bending structure after installation.