Based on the theory of restorative justice, this study intends to investigate casual factors of restoration for those offenders who received suspended prosecution from local prosecutorial offices. It first used focused group interview method to interview prosecutors and probationer officers to collect information on their attitudes toward suspended prosecution. It also used questionnaire survey to collect information from 220 offenders who received suspended prosecution from 4 prosecutorial offices. The study then used independent sample t-test, ANOVA, Pearson correlation and stepwise regression to analyze data. The results show: 1. From the perspective of restorative justice theory, the implementation results of suspended prosecution are all positively responded by the offenders, these include: procedural satisfaction, result satisfaction, shame rebuilding and degree of restoration. 2. Among offender demographic variables, only yearly income has significant impact on procedural satisfaction; offense characteristics are not significant correlated with implementation results. 3. The offender’s procedural experience of suspended prosecution have significant impact on the degree of restoration. 4. The implementation benefits become more significant if there are dialogues between offenders and victims. 5. Correlation analysis and regression analysis show that the main factors influencing offender restoration are the subjective procedure of suspended prosecution that the offender experienced. This research discovered that factors influencing offender’s restoration are mainly surrounded on the prosecutors’ factors: good attitude to conduct interrogation, fairness and diligence, allowing the offenders to express their opinions, encourage the offenders to restart a new life etc. This study therefore suggests than an emotionally-intelligent criminal justice system is important to make offenders to restore their lives.