本文报导了利用意大利SIRIO—1卫星所进行的太阳对卫星通信干扰的研究结果(包括对2Mbps、64Kbps数码通信质量、信号强度、载噪比和SCPC电话话音质量的影响)。并对太阳干扰出现的时间、强度和概率作了理论的分析,所得实测值和理论值相当一致。所获得的结果将对卫星通信回路总体设计、特别是高可靠性的卫星通信回路总体设计有一定意义。 This article reports the results of a study of the Sun’s interference with satellite communications using the SIRIO-1 satellite in Italy (including the effects of digital communications quality at 2Mbps, 64Kbps, signal strength, carrier-to-noise ratio, and voice quality in SCPC phones). The time, intensity and probability of the solar interference are analyzed theoretically. The measured and theoretical values ​​are quite consistent. The results obtained will have some significance to the overall design of the satellite communication loop, especially the overall design of the high-reliability satellite communication loop.