Introduction: Acute locking of the cervical spine is a very clearly defined syndrome, occurring most commonly in adolescents. The short-wave diathermy used widely utilise the frequency of 27.12 MHz and wavelength greater than 11m. Cervical traction is a modality of choice for many cervical dysfunctions. It is applicable in a wide range of problems from sprain to fractures and dislocations of the cervical vertebrae. Mobilization is defined as a low-velocity and small- or large-amplitude movement applied anywhere within a joint Range of Motion. Aim: To find the effectiveness of Short-Wave Diathermy (SWD), Cervical Traction (CT) and Mobilization on Pain and range of Motion in Acute Locking of Cervical Spine. Method: 15 male patients with age between 23 to 45 years with the chief complaint of locked neck and difficulty in moving the neck were included in the study. SWD, CT and Mobilization was given to them. VAS and Cervical ROM was assessed before and after the treatment. Result: All Statistical analysis were done by software SPSS 20.0 version. Means and Standard Deviation (SD) were calculated as a measure of central tendency and measure of dispersion respectively. Comparison within group for Visual Analogue Scale (t=30.984), Cervical Flexion (t=-6.671), Cervical Side-Flexion (t=-21.569) and Cervical Rotation (t=-20.601) Range of motion were done by Paired __ampersandsignlsquo;t__ampersandsignrsquo; test (p__ampersandsignlt;0.05). Conclusion: Combination of Short-Wave Diathermy, Cervical Traction and Mobilization is effective in reducing pain and increas ing range of motion in acute locking of the cervical spine..