The effectiveness (Wirksamkeit), commitment effect (Bindungswirkung) or administrative finality (Bestandskraft) of administrative act are still difficult and complicated issues. There are still differences and uncertainties in these general conceptsn in administrative law. The discussion of doctrines is also like a misty forest. This article analyzes the system of the effect of administrative act. The object of restraint and the connotation of restraint are discussed as categories.