The present study conducted for study the loan repayment pattern and reasons of madding default in the loan repayment by the marginal farmers and to provide suggestions to overcome the problem of non repayment of loan amount of marginal farmer households. The present study is empirical nature and mainly based on primary data collected by using stratified random sampling and direct interview method and open ended schedule will prepare for data collection. The total sample size is 600 marginal farmer households. The secondary data collected mainly from Haryana statistics abstracts and Sonepat district statistics abstract. The collected data analyzed by using wind range of appropriate statistics techniques such as Percentage, Average, Ratio, Proportions, Range and Chi- Square test etc. The study concludes that the maximum marginal farmers adopt the lump sum method with the 69.88percent, then the installment method with the 29.81percent of loan repayment in the institutional sources and repayment of loan in lump sum create one time burden of repayment, so the study suggest that the institutional loan repayment must be in installments. In the non institutional sources maximum marginal farmers adopt the installment mode of repayment of loan with the 45.55percent. The main reasons of making default in the loan repayment by the marginal farmers found less income and any other with the 62.25percent and 44.58percent respectively and in the any other reason maximum farmers expect that the government will relax their outstanding loan amount, so the study suggests that loan is provided for the more income generated activities and subsidies in the interest should be given to the good debtors by the government.