The invention provides a method for degumming ramie bast fiber microbe in solid state. The method comprises the following steps: making bast of ramie into a fiber bundle; adding water into the fiber bundle according to a mass ratio of the ramie bast fiber to water being 1:1-5; adjusting the pH value of ramie bast fiber aqueous solution to between 5 and 8; introducing microbial fluid; and introducing pre-culture microbial fluid with 2 to 6 percent (V/V) of total water amount, and degumming for 1 to 4 days at a temperature of between 30 and 40 DEG C. The method fundamentally solves the problem of pollution generated by the chemical degumming method; wastewater generated by degumming does not contain any chemical medicinal residue, and reduces pollution on the environment; and the degummed textile fiber raw material can completely achieve the requirement of textile, and the rate of long fiber growth is increased by 10 percent compared with the prior art. Particularly, the method can prepare process fibers according to the spinning requirement, and can prepare spinning filament by properly prolonging the degumming time. The method reduces environmental pollution while improving resource utilization rate, and has wide application prospect.