High resolution ultrasound is an excellent modality of evaluation of paediatric neck. The excellent tissue details and anatomical landmarks in the neck like thyroid cartilage, trachea, strep muscles and neck vessels have made assessment of the neck masses a practical proposition. The neck masses are divided into two major groups, 1. Thyroid neck masses 2. Non thyroid neck masses. The non thyroid neck masses include cervical masses, lymph node mass, salivary gland masses, nerve tumors, vascular masses, inflammatory masses, parasitic infestations, congenital masses, benign and malignant neck tumors. High resolution ultrasound is multi planner, non invasive, cost effective imaging modality, which is having advantage of CT scan and MRI, since the spatial resolution of ultrasound is much better than CT and MRI. The biggest advantage is that it is dynamic modality, which does not require any sedation or special preparation for evaluation of neck masses. The excellent tissue characterization of various structures in the neck on ultrasound, clearly differentiate different pathologies. The 3D ultrasound with multi planner imaging increases the diagnostic accuracy. The lecture is only restricted to non thyroidal soft tissue masses of the neck.