What Kinds of the Researchers of Teacher

In order to remove the perplexed of teachers as researchers, realize the identity of teacher research, based on the germination, development and go deep into the investigation on teachers’ dominate position in different stages , discovered that teachers as researchers have three different identity: “action researchers”, “reflection practitioners”, “critical practitioners” . This paper  focus on the development，the epistemology bias as well as the advantages and disadvantages of the three kinds of identity of teacher researchers.