The NLSC drew up a 4-year-project in order to establish calibration affairs for remote sensing sensor system. In the year 2011, the influential environmental factors are drafted to evaluate suitability of calibration sites. 36 professionals from 7 industries, 3 officials and 5 universities were invited to NLSC to gather opinions on the factors and sites. The rudimentary agreement was reached, and all valuable suggestions are collected for future reference.