Satellite laser ranging(SLR)is the most accurate technique for single-point distance measurement of satellites,and has become an indispensable means in the field of high-precision measurement.Most SLR stations in the world use the working wavelength of 532 nm.In the daytime ranging,there are problems such as large background noise and difficult echo recognition,which affects the daytime ranging data output of the station.Considering the low background brightness of the 1064 nm band during the day,the paper theoretically calculated the background noise intensity of the 1064 nm band and the 532 nm band respectively.The actual measurement of the background noise of the two bands was performed during the sunny day,which is basically consistent with the theoretical analysis.On this basis,the 1064 nm satellite laser ranging experiment in the morning faint period was carried out,and the effective echo data of multi-passes satellites were obtained,which laid a good technical foundation for daytime satellite laser ranging based on 1064 nm in the future.