Use of partographs during labor is a key intervention but it is not widely used due to various factors. This is one of the quality thematic areas incentivized by PBF. Hence the aim of our study was to determine these factors associated with utilization of partograph in Jimma and Buno-Bedelle zone. Our study adopted a cross-section design with independent control. The data collection was retrospective interview of 239 health workers who conducted deliveries in Q3 2021 (July – September 2021) in health facilities from both Buno-Bedele (control) and Jimma (intervention) zones. Bivariate analysis was performed using chi-squared tests. Multivariate analysis was performed using logistic regression analysis. All data analysis was conducted in STATA 15. The proportion of health workers using partographs was higher in Jimma (86.5%) compared to Bedele (64.4%), with a p-value less than 0.001. The finding of this study indicated that the major reasons for non-use of partographs were little/no knowledge, lack of training and shortage of staff and time consuming. Knowledge of partograph, availability of partograph and training on partograph have a positive impact on use of partographs as shown by the statistically significant adjusted odds ratios (AORs) in Table 4. Midwives were also found to be more likely to use partographs compared to nurses. This study revealed that PBF contributed to availability of partographs, improved knowledge score and training on partograph utilization in Jimma. PBF have also improved the use pf partographs for monitoring labour and understanding of action lines in early diagnosis of complications during labour. Keywords: Factors, Partographs, Performance based financing, Utilization and Completeness.