Mastitis is greatest problem for dairy industry due to heavy economics losses. It causes devastating losses to the livestock industry in India and throughout the world. The present investigation was undertaken to study the incidence of clinical mastitis in crossbred cows in Military dairy farm Mhow. 158 crossbred cows of either age were selected for present investigation. Age wise and quarter wise incidence of clinical mastitis was determined. For determining the age wise incidence, the animals were divided into 4 groups viz. upto 5 year, 5-7 year, 7-10 year and above 10 years of age. Total 81 animals were found positive indicating incidence of clinical mastitis (51.26%) in Military dairy farm Mhow. The cows up to 5 yr, 5-7 year, 7-10 year and 10 year above age group had incidence of 59.0%, 20.9%, 12.3% and 7.40% respectively. Out of total animal 158 was screened incidence rate was up to 5 year, 5- 7 year, 7-10 year and 10 year above age group had incidence of 30.37%, 10.75%, 6.32% and 3.79% respectively. The quarter wise incidence of clinical mastitis was calculated on the basis of 632 quarter .The incidence was observed in quarter Left fore quarter, Right fore quater, Left hind quater, Right hind quater was 6.32%, 6.17%, 6.32% and 6.17% respectively. The infection in LH, LF, RH and RF quarters of Malvi cows was 4.87, 8.53, 9.75 and 6.09% respectively.