Manufacturing firms are increasingly using supplier development to address gaps in their supply base aimed at improving their performance. There has been a decline in sugarcane yield in Kenya yet, the demand for sugar has been increasing steadily over time. Drawing on the supplier training aspect of supplier development strategy, the study objective was to establish how supplier training impacts on performance improvement of sugarcane enterprises in Kenya. The study hypothesis was that there is a significant positive relationship between supplier training and the performance of sugarcane enterprises in Kenya. The study was premised on a descriptive research design and a sample size of 400 drawn from a population of 250,000 active farmers was used. A pre-test of 10% was done to check on the reliability and validity of the data collection instrument. 400 questionnaires were issued out and 293 were returned, achieving a 73.25% return rate. The results of simple linear regression show an r= .347, p value=0.000.