Effective school  leaders is one of the main condition for the success  of school. School principal  standard  will help school  leaders to evaluate their school development plans and activities.  In addition to the stanadard  includes necessary  skills for  school principal,  it also outlines the indicators which make easy   self – assesment for school principal. According to the self-assesment school principal will be able to plan himself professional developemnt and school activities.