There are the factors that affect the sustainability of SMEs in Perlis which are leadership, network, employee management, customer orientation, market strategy. Five questions will be asked for each of the independent variables. Section C concerns the dependent variable. This section will show whether the respondents agree or disagree with the independent variables stated above that will affect the sustainability of SMEs. In sections B and C, the respondent needed the appropriate number which is provided. There are from number one to five. Number one (strongly disagree), number two (somewhat disagree), number three (neutral), number four (somewhat agree) and number five (strongly agree). This method will be simple and effective for respondents to answer the questionnaire. The questionnaire will absolutely provide reliability and validity of the data. “The point at which making a judgment about something by design creates a stable and consistent result is called reliability. Validity is the accuracy of the correct performance of the scale sample” (Phelan and Wren,