The present study was conducted at Livestock Production Research Institute, Bahadurnagar, Okara. The objective of the study was to find out or develop the relationship between live body weight and body measurements in Lohi sheep breed. The sheep were arranged in five age groups, groups A, B, C, D, and E. The group A was comprised of 0-6 month of age; group B= 7-12, group; C= 13-18, group D= 19-24 and group E above 24 months age of animals. Group A, B and E were further divided into sub groups (Male & Female), where as the groups C and D comprised of Ewes only. Body weights were taken using weighing scale and measurements of Body weight, Height at Wither, Body Length, Heart Girth, Head Length, Head Width, Ear Length, Ear Width, Neck Length, Neck Width, Rump Length, Rump Width, Barrel Depth, Sacral pelvic Width, Teat Length, Teat Diameter, Testes Length and Testes Circumference with the help of measuring tape graduated with centimeter. Data on 1008 female / 44 male and total of 1052 observations of different age groups of sheep were collected. The mean of all body measurements (cm) and body weight (kg) of Overall Lohi sheep of age group 0-6, was found to be 46.03 ± 11.00 (cm), 45.41 ± 10.24 (cm), 43.79 ± 9.47(cm), 14.75 ± 4.32 (cm), 6.62 ± 1.20 (cm), 23.22 ± 4.73 (cm), 9.46 ± 3.08 (cm), 15.69 ± 5.45 (cm), 10.51 ± 3.56 (cm), 14.83 ± 5.41 (cm), 8.68 ± 2.63 (cm), 26.77 ± 8.15 (cm) and 7.80 ± 4.77 (Kg) respectively. The mean of all body measurements (cm) and body weight (kg) of Overall Lohi sheep of age group 7-12 was found to be 66.70 ± 4.36 (cm), 67.32 ± 4.03 (cm), 66.65 ± 4.84 (cm), 24.80 ± 3.14 (cm), 10.59 ± 1.56 (cm), 30.10 ± 2.34 (cm), 13.64 ± 1.02 (cm), 25.01 ± 2.84 (cm), 15.44 ± 1.88 (cm), 22.43 ± 1.85 (cm), 15.76 ± 1.66 (cm), 36.67 ± 2.50 (cm) and 25.29 ± 3.46 (Kg) respectively. The mean of over all body measurements (cm) and body weight (kg) of Lohi sheep of age group 13-18 was found to be 68.04±3.15 (cm), 68.68±2.73 (cm), 69.77±2.31 (cm), 26.83± 1.87 (cm), 10.86±1.02 (cm), 29.52±2.65 (cm), 14.40±0.97 (cm), 27.13±2.45 (cm), 16.83±2.31 (cm), 23.11±1.92 (cm), 15.05±0.92 (cm), 38.70±1.51 (cm) and 26.60±2.41 (Kg) respectively. The mean of over all body measurements (cm) and body weight (kg) of Lohi sheep of age group 19-24 was found to be 71.88±3.34 (cm), 70.65±3.81 (cm), 72.43±3.90 (cm), 26.87±1.92 (cm), 11.88±1.46 (cm), 30.66±2.68 (cm), 14.42±1.37 (cm), 26.03±2.47 (cm), 16.54±1.67 (cm), 23.95±1.92 (cm), 16.84±1.46 (cm), 38.96±2.43 (cm) and 30.83±3.32 (Kg) respectively. The mean of all body measurements (cm) and body weight (kg) of Overall Lohi sheep of age group above 24 months of age was found to be were 76.30± 5.37 (cm), 77.41±6.74 (cm), 81.63±7.44 (cm), 26.86±2.92 (cm), 12.14±1.60 (cm), 32.65±17.22 (cm), 14.44±1.89 (cm), 26.42±3.47 (cm), 19.28±3.37 (cm), 24.48±2.73 (cm), 19.35±2.53 (cm), 45.43±19.28 (cm) and 42.91±6.54 (Kg) respectively.