The utility model provides an adjustable automobile data recorder support which comprises a support bottom shell, a support face shell, a ball head support, a first fixing block, a second fixing block, a fixing block support, a bolt and a nut, the ball head support is arranged between the support bottom shell and the support face shell, and the connecting end of the ball head support is arranged above the support face shell; the first fixing block and the second fixing block are arranged on the left side and the right side of the ball head support respectively, and the first fixing block is arranged on the fixing block support. The bolt sequentially penetrates through the support face shell, the second fixing block, the ball head support and the first fixing block and then is connected with the nut. Through the cooperation of the ball head support, the first fixing block, the second fixing block, the fixing block support and other structural parts, stress is effectively dispersed, the angle adjusting requirement can be met, excessive pressure is prevented from being generated in the adjusting process, the probability of the fracture phenomenon is effectively reduced, and the stability of the whole structure is improved.