There are the degree adverb features of meaning and sentence structure by reality application. First of all, the degree adverb shows the level of statement, feeling, perceptivity level according to the relationship with co-occurrence fact and the quantity of main subject, quantity of subject or the rate of operation besides the [strength of a degree] synonym meanings. For this, the evaluation of degree adverb is related to co-occurrnce of command, request and negation. Therefore, ‘Sukoshi(少し)’ and ‘Chotto(ちょっと)’ have a remarkable evaluation because they have comparatively less influenced on a co- occurrence. Also generally the co-occurrence with degree adverb and interrogative sentence is restrictive but it is possible in co-occurrence with agreement or consultation what is on the assumption of realization. Next, qualitative degree adverb has many co-occurrences with adjective, however quantitative degree adverb has similar function to quantitative adverb which comes with co-occurrence of action verb and substantive modification with attended ‘No(の)’. Lastly degree adverb in appearance aspect of subordinate clause has shown high appearance rate in reason・cause ‘Node(ので), Te(て3), Kara(から)’ and an opposite cause sentence ‘Ga(が), Keredo(けれど)’ of mostly B and C. That is, degree adverb is used to sentence for showing decision・result for [reason, cause of objective situation], also it is more declarative than condition adverb. Degree adverb is located in middle position that has more propositional feature than declarative adverb.