To provide a clump prevention device for cooked rice which prevents cooked rice from being clumped due to water condensation in a rice cooker as time passes to become hardly loosened.

The clump prevention device for cooked rice includes a body outer circumferential frame, an inner circumferential frame, and several bone frames connecting these frames. A plurality of bone frames are connected to a handle shaft at the center, and a tab part is formed on the upper part of the handle shaft. A plurality of space forming materials are attached to the outer circumferential frame, the inner circumferential frame, and the bone frames to connect the outer and inner circumferential frames. An air groove and a plurality of air holes are formed in each of the space forming materials. Substance components etc. assumed to have good effect on a human body are preferably synthesized and contained upon forming the device.