Recently, the issue of Child sexual abuse(CSA) in Sudan started to become public, following recurrent accidents , severe injuries and deaths. The aim oudy was to identify patterns of child sexual abuse in Khartoum-Sudan in addition to pre abuse, peri abuse and post abuse factors that put the children at a risk of abuse. A cross sectional, prospective survey including 282 sexually abused children has been conducted from 1/3 to 30/6/ 2012.Pattern of child sexual abuse was found to be (92.6) through Contact), mainly sexual intercourse (60.2%). Offenders were extra familial figure (88.3%), mainly neighbors (44.0%) and people in the surrounding (17.4%). Only 14.2% were total strangers. (11.7%) abused by an intrafamilial figure, and (3.6%) by incest. Repeated sexual abuse was (18.1%) and significantly linked to females and older children and significant when living with stepfather, stepmothers and when offender used persuasion to commit the abuse. The most targeted age group was from 5-10 years (45.4%). Most of the abuses took place in areas significantly known to child and family and significantly related to offenders (44.1%) and the family (23.8%).