Abstract: In this paper the studies of solar-weather rclationship durlng the rccent 15 years are ceviewed.At first,the modern views about the structures of solar surface and solar atmospherc are introduced.The definition of solar-activity and the physical processcs occurcd on the sun which cause changes in the region of ultra-violct and radio wave of the sun's electromagnetic radiation as well as that of sun's corpuscular radiation are discussed.Then the chief achievements about the investigations on the problem of solarwcather relationship are given.Finallv some theories about the ohvsical mcchanism of solar-weathcr relationships and the importance of the studies on this problem in the extended weather forcasting as are commented.