The invention discloses a direct-driven type double-vibration wave power generation device which comprises a T-shaped floating platform, a vertical guide rail, a counter weight vibrator, two supports, two disc type permanent magnet generators and two flexible rule springs. The T-shaped floating platform comprises a vertical cylindrical upper barrel cavity with a larger radius and a vertical cylindrical lower barrel cavity with a smaller radius, the top of the lower barrel cavity is communicated with the center of the bottom of the upper barrel cavity in a sealed mode, the guide rail is fixed in the lower barrel cavity, the counter weight vibrator is mounted on the guide rail, the two supports are fixed in the upper barrel cavity and symmetrically arranged on the two sides of the guide rail, the disc type permanent magnet generators are fixedly mounted on the supports respectively, rotors of the disc type permanent magnet generators are fixedly connected with rotating shafts of the flexible rule springs, and pull ropes of the flexible rule springs are connected with the counter weight vibrator. According to the direct-driven type double-vibration wave power generation device, the advantages of being convenient to move and simple in sealing are maintained, the wave conversion efficiency of the device is improved, and workable wave heights and the cycle range of the device are expanded.