The aims of this research is to provide an overview about the checklist safer surgery writing obedience in RSKB ANNUR Yogyakarta. Quasi experiment is used in this research. The used-design experiment is one-group pretest-posttest design where there should be pretest after treatment and posttest after treatment. There is a little deviation among mean, standard deviation, and standard eror. It can be concluded that the surgery team has been obedient in implementing pre and post safety surgery. The r correlation is 0.061 showing the contribution of checklist safety surgery socialization. The obedience level is 0.37% while the resr is caused by anotgher factor. The significant value is 0,709 (Sig.>0,05) showing that there is no correlation between socialization of pre and post checklist safety surgery and the surgery team obedience. The implementation of briefing with pre-Safety Surgery Checklist cannot be correlated since the standard error is 0.000. The sign-in implementation with in-Safety Surgery Checklist is more effective with Sig value (p) is 0,031 (p<0,050) where it means that Ho is denied. There is significant difference in pre and post safety surgery writing. The implementation of time out with Safety Surgery Checklist in surgery is ineffective with the Sig (p) value is 0,323 (p>0,050) where it means that Ho is accepted so there is not significant difference between checklist time out obedience and pre-post safety surgery implementation. The debriefing implementation with in-Safety Surgery Checklist is ineffective since the Sig (p) value is 0, 160 (p>0,050) where it means that Ho is accepted, so there is not significant difference between the obedience of checklist sign out writing before pre and post safety surgery implementation. The Five Steps To Safer Surgery implementation in RS ANNUR Yogyakarta is ineffective since the Sig (p) value is 0, 164 (p>0,050) where it means that Ho is accepted, so there is not significant differnce between surgery team?s obedience and pre and post safety surgery implementation.