The testes are male reproductive and endocrine organs for sperm production and testosterone secretion and are suspended with ‘C’ shaped epididymis in the scrotal sac. The left one lies lower than the right one. The undescended testes (UDT) is located in normal descent pathway with normal insertion of the gubernaculum and fails to achieve complete descent into the scrotum. Therefore, a thorough understanding of the proper diagnosis of each of these conditions is required to provide proper management. This prompted us to carry out the present study, which aimed to observe Precise localization of undescended testes, to measure the dimensions, the echo texture and to note differences of echogenicity of both testes in respect to normal descended testes or normal reference by ultrasonography. Total 40 male patient in specific age group of six months to twelve years were selected in this study and was conducted according to proforma at NRS Medical College during 2016–17.The mean age of presentation was 4.65 years and most frequent distribution was seen in 3year to 6year age group. Position of the undescended testis examined by Ultrasonography were mostly suprascrotal & intracanaliclar around 78 percent. In the present study, We found the age of presentation and location of undescended testes are consistent with most of previous study. Age of presentation as 4.65 year and detect most of UDT on right side (52.5%). Ultrasonography has sensitivity 72.73% and showed the echogenicity of undescended testes, give valuable findings of non–palpable testes and thus help to plan definite surgical procedure.