Swimming exercise device

An improved swimming exercise device, comprising:

• a device body having a front portion and a rear portion, wherein one side of the front portion is coupled to one side of the rear portion so that a space is formed between the front portion and the rear portion, and the rear portion is formed atop with a supporting surface;
• a pendulous device that is disposed in the space and has one end thereof pivoted on the front portion and an opposite end thereof pivoted on a front edge of the supporting surface;
• two arm stroke gears, disposed respectively on both lateral sides of the front portion of the device body;
• two elastic devices, pivotally disposed respectively, side by side, on an upper rear edge of the supporting surface;
• and
• a first fixing member, disposed on the front portion of the device body for fixing a flat-top of the pendulous device;
• the improved swimming exercise device being characterized in that the supporting surface on the device body separates the pendulous device from the elastic devices, so that the supporting surface serves to support an abdominal region of a user lying prone thereon, and with the abdominal region supported by the supporting surface, the user is allowed to transversely wiggle his/her upper-half body and vertically swing his/her legs more coordinately, stably and smoothly and the improved swimming exercise device being characterized in that the fixing member disposed on the front portion of the device body serves to fix the pendulous device so as to selectively hold the pendulous device from being pendulous.