The present invention discloses a straight stator generator of utilizing caterpillar drive excitation. The straight stator generator comprises a generator installing machine pedestal, the machine body skeletons are fixedly connected at the two sides of the upper surface of the generator installing machine pedestal, and the first installing bases are fixedly connected at the two sides of the outer surfaces of the machine body skeletons. The second installing bases are fixedly connected on the surfaces at the inner sides of the first installing bases via bolts, the bearing blocks are fixedly connected on the surfaces at the outer sides of the second installing bases, and the rotating shafts are connected in the bearing blocks rotatably. The caterpillar drive chain gear flanges are fixedly connected at the two sides of the outer surfaces of the rotating shafts, the chain gear discs are fixedly installed on the outer surfaces of the caterpillar drive chain gear flanges via screws, and chains are meshed with the outer surfaces of the chain gear discs. The straight stator generator of utilizing the caterpillar drive excitation solves the difficulty of a multi-pole number low-rotating speed generator equipment production technology, and enables more effective electric energy to be outputted under the equal power.