The invention belongs to the technical field of laser welding, and relates to a laser welding fixture and a laser welding workstation. The laser welding fixture comprises a support module, an upper pressing module, a first side pressing module, a second side pressing module and a clamping jaw module; and the support module, the upper pressing module, the first side pressing module, the second sidepressing module and the clamping jaw module are matched to fix machined workpieces in accommodating space. The laser welding workstation comprises a laser, a water cooler, a voltage stabilizing powersupply, an air circuit integration cabinet, a welding main machine and an operation control system, wherein the welding main machine comprises a worktable, an inlet and outlet slide table, a safety optical grating, a welding robot, a welding head and the laser welding fixture. The laser welding fixture and the laser welding workstation can achieve high welding precision, and effectively improvesthe product yield.