In Turkey whenever a debate about collective labour law issuearised, instead of evaluating collective labour agreement s content oreffects, mostly discussions arise from the competence issues, especiallyrelated with who has the power to conclude a collective labour agreement. In European Union Countries although there is no legal regulations about the power to conclude a collective labour agreement, it isnever have been seen as an important problem. But in our country whiledetermining the workers union competence to conclude a collective labour agreement many problems occur. The main reasons of the problems are the legal provisions which are designated by the governmentauthorities and the attitudes of the collective labour agreeement parties.Lastly, the Law on Trade Unions and Collective Labour Agreements,No. 6356 which is effective from 7.11.2012 brings new provisions aboutthe collective labour law sytem. Unfortunately, in the new code there isno different and useful provisions which can be a solution to the mainproblem. There is still a need to change the legal provisions about thecompetence and understanding of government custody and supervisionover the collective labour system. Collective labour law parties must effectively be a part and must play an important role by themselves in thecollective labour law system.