This study is to understand the existing conditions of Junior High Schooler's grouping according to the normal ability, the opinions given by teachers, Students and student's parents, and the functions of assistance and guidance ofter perfouning Normal Grouping policy at Junior High School level. The writer bases the study on the questionaire through the assitance of 413 guidance secretaries from different schools. The above guestionaires show the outcme as follows: 1.) Student's parents are not opposed strongly to the nurmol grouping than public opinions in the news report, while Both teachers and students favorably approve it. 2.) The normal grouping policy has not been thoroushly putinto practice especially schools at the urban areas. 3.) the said policy fails to reduce studeut's number of enrollment from other schooling zones. 4.) The said policy shows favarable reaction to school administration Student's human relations and living adaptation. However in performing, we find it not suitable for individual difference, and it makes some student's learning more difficult. 5.) It makes student's mental attitude-superioreity comples and inferiority complx-well adjusted. 6.) There is no striking defference between the normal grouping period and non-normal grouping period about the student's asking questions and the frequent occurrence. 7.) Guidane secretaries have various different viewpoints about their role functions which fail to result from the normal grouping policy. The writer recommends, from the foregoing discaveries, as follows: 1.) Thoroughly carry out the normal grouping policy because of it's more advantage and less disadvantage. 2.) Lower the pressure of opposing normal grouping by eliminating student's enrollment from other shooling zones. 3.) Conduct co-ed class to make the normal grouping more natural. 4.) Offer electives in keeping with student's academic ability to meet the individual needs. 5.) Establish guidance measures for student mental heath and an integrated proiect for guidance work. 6.) Assign full-time guidance teachers to offer the courser for guidance activities so as to assure that guidance activity at class level will be thoroughly carried out, and further assist students in the living and learning for normal grouping adaptation; establish a special commission to help students perfom the grouping and electing courses.