The invention discloses an integrated heat radiator of a frame structure. The integrated heat radiator comprises a supporting frame and at least one first heat radiator body installed on the supporting frame. A plurality of sets of guide plates are arranged on the left side and the right side of the supporting frame. The two ends of the first heat radiator bodies and the two ends of water aprons are installed in the guide plates on the supporting frame through first positioning mechanisms, and the first heat radiator bodies and the first positioning mechanisms can integrally move frontwards and backwards in the guide plates. The supporting frame is further provided with at least one second positioning mechanism. The second positioning mechanisms are used for adjusting the horizontal positions of the first heat radiator bodies in the guide plates. The integrated heat radiator further comprises a second heat radiator body which can move up and down in the vertical direction and be adjusted transversely through a guide rail-sliding block mechanism. The integral heat dissipation performance of a heat dissipation system is optimized, each heat radiator body is easy to replace after being damaged, the whole heat radiator is easy to clean by adjusting the positions of part of the heat radiator bodies, and the integration level of the heat radiator is high.