The invention discloses a volleyball launching device. The device comprises a supporting frame, a moving platform and a volleyball launching barrel; the moving platform is installed on the supportingframe; a volleyball outlet of the volleyball launching barrel is fixed on a sliding block of the moving platform; the tail end of the volleyball launching barrel is fixed on a vertex of a four-connecting rod mechanism which can move circumferentially around a fixed rod; the supporting frame comprises a first bracket and a second bracket; the moving platform is installed on the first bracket; the fixed rod of the four-connecting rod mechanism is installed on the second bracket; a volleyball is placed in the volleyball launching barrel; and a pneumatic pushing rod set is arranged at the tail endof an inner cylinder of the volleyball launching barrel. According to the volleyball launching device, volleyball launching of all angles and directions can be realized, so that a mode is more real and a training effect is better; and pushing rods in multiple directions are arranged at the tail part of a guide cylinder of the volleyball launching barrel, when the lower pushing rod is pushed for serving the volleyball, a training team member can practice volleyball smashing, and when the upper pushing rod is pushed for serving the volleyball, the training team member can practice ball receiving and multi-directional ball rotating, so that the training mode is more real.