This study aims to find out the key factors that influence the sustainability of the dairy business in the lowlands of Malang Regency. The research was conducted on January 20-February 20, 2022, in Kalipare, Gondanglegi, and Bantur Districts. The location was selected using purposive with the criteria of the location being at an altitude of <400masl, which is lowland. The research method used is a quantitative descriptive survey. Information was obtained from respondents through a Focus Group Discussion with a total of 6 respondents consisting of the livestock and animal health service, the head of the livestock unit, and the head of the livestock group. The results of this study are the key factors that influence and support the sustainability of dairy cattle in the lowlands of Malang Regency are 1) Variable A (air temperature and humidity) with a global strength score of 1.86; 2) Variable B (distance between cage and settlement) with a total global strength score of 1.72; 3) Variable C (forage availability) with a total global strength score of 2.31; 4) Variable D (average dairy cow ownership) with a total global strength score of 2.98; 5) Variable E (amount of subsidy) with a total global strength score of 2.44, and 6) Variable F (marketing information system) with a total global strength score of 1.02.