The invention belongs to the field of photographic equipment and discloses a handset selfie stick chuck, which comprises a clamping box with an opening on the left side thereof. The right part of the top plate of the clamping box is provided with an insertion hole. The right side of the clamping box is provided with a vertical support plate. A pressure spring is arranged between the support plate and the right outer wall of the clamping box. The upper end of the support plate is provided with an upper sliding plate. The lower end of the support plate is provided with a lower sliding plate. The upper sliding plate and the lower sliding plate pass through the right sidewall of the clamping box. The upper sliding plate and the lower sliding plate are in sliding fit with the right sidewall of the clamping box. The left end of the upper sliding plate is provided with a downward upper clamping plate. The left end of the lower sliding plate is provided with an upward lower clamping plate. The upper clamping plate and the lower clamping plate abut against the right inner wall of the clamping box. By means of the handset selfie stick chuck, the technical problem in the prior art that a handset easily deforms to be damaged or easily falls down to be damaged when being tightly clamped by an existing handset selfie stick chuck can be solved.