The invention discloses a method of promoting the organification of saline and alkaline bare soil using complex microorganism. The method comprises the steps of soil salt resistance, control of soil salinity, organification of soil, soil ecological environment restoration, soil drainage and soil salt system construction, planting, and soil regular maintenance. In comparison with the prior art, the method of promoting the organification of saline and alkaline bare soil using complex microorganism does not have requirements on soil replacement, does not result in gravel salt separation deposit, through the complex microorganism improvement technology, a large quantity of useful microbial bacteria are kept present in the soil, the content of organic matter in soil is increased, and the rising of the salt content is effectively inhibited, and a better environment is provided for the growth of plants.