<;P>;PROBLEM TO BE SOLVED: To provide a solid deodorizing composition that has excellent effects in concurrently deodorizing acid, alkaline and neutral gases with a single deodorizing agent without corroding the device for deodorization, and to provide the manufacture process of this composition. <;P>;SOLUTION: This solid deodorizing composition contains iron sulfate, slaked lime, active carbon and humus earth, and the solid content of the iron sulfate is 10 to 50 wt.% of the total solid deodorizing composition volume and has pH6 to 8. The manufacture process of the solid deodorizing composition is such that the slaked lime, active carbon and humus earth are prepared beforehand and then the solution of iron sulfate is added and mixed together with them, followed by the process of pelletizing and drying the mixture. <;P>;COPYRIGHT: (C)2009,JPO&INPIT