This article aims to study the constraints faced by the plastic industry. The main objective of the study was the implementation of various principles of lean manufacturing techniques to bring continuous improvement in the plastic industry. The researcher collected data from respondents who are employees of the plastic manufacturing industry. The statistical analysis was conducted using SPSS, demographic analysis, descriptive analysis, frequency, correlation, and regression. A correlation table is interpreted based on the Pearson correlation value and the significance value. The independent variables are quality improvement, product improvement, customer satisfaction, employee satisfaction, and supplier whereas, the dependent variable is the Kaizen method. The Pearson correlation of KM with quality improvement is 85.3% with a 0.000 significance value which shows a high correlation, the Pearson correlation of KM with product improvement is 88.3% with a 0.000 significance value which shows a high correlation, Pearson correlation of KM with customer satisfaction is 12.9% with -0.057 significance value which shows that one variable increases so the other decreases, Pearson correlation of KM with employee satisfaction is 15.5% with -0.023 significance value which shows that low correlation and finally, Pearson correlation of KM with Supplier is 40% and significance value which is 0.000 which shows high correlation.