The invention discloses a compressor transmission device in an up-down structure which is characterized in that an upper supporting seat is arranged on a lower supporting seat through a mandrel; a spring assembly is arranged at one end of the lower surface of the upper supporting seat; two upright columns are respectively arranged on the two sides of the front end of the upper surface of the upper supporting seat and a U-shaped plate is arranged at the rear end of the upper surface of the upper supporting seat for forming a three-point supporting structure; a motor supporting plate is arranged at the upper end of the three-point supporting structure; a triangular reinforcing rib I is arranged between the side surface of the top end of each upright column and the motor supporting plate; a triangular reinforcing rib II is arranged between the side surface of the lower end of each upright column and the upper supporting seat; a triangular reinforcing rib III is arranged between the upper end of the front surface of each upright column and the motor supporting plate; and a triangular reinforcing rib III is arranged between the lower end of the front surface of each upright column and the upper supporting seat. By employing the appearance characteristic of a six-cylinder compressor, the three-point supporting structure is designed, the widest part in the compressor is avoided, the width of the compressor transmission device is only 388mm, and occupied space is reduced obviously, so that the compressor and a power generator can be mounted at a large vehicle body conveniently, and a positive effect is exerted on the manufacturing of a vehicle.