The invention discloses a linear hoisting device which comprises a base, a bearing panel and a lifting rack arranged between the bearing panel and the base, wherein the lifting rack comprises a left rack rod and a right rack rod; a T-shaped groove is formed in the bottom surface of the bearing panel; an inverted T-shaped concave cavity is arranged on the top surface of the base; an inverted T-shaped block is fixed at the bottom end of the right rack rod; a T-shaped slide block is fixed at the top of the left rack rod; the inverted T-shaped block of the right rack rod is arranged in the inverted T-shaped concave cavity; the T-shaped slide block is arranged in the T-shaped groove; a concave cavity with an opening in the top surface is arranged in the bearing panel; a motor is fixed in the concave cavity; a winding post is fixed on a main shaft of the motor; a pull hole communicated with the T-shaped groove is formed in the bearing panel; one end of a stay rope is fixed on the winding post, and the other end of the stay rope penetrates through the pull hole and is connected with the T-shaped slide block. The device is reasonable in arrangement, occupies a small space, and solves technical shortage that the hoisting device in the prior art is not applicable to small space operation, so that an application scope of the device is greatly expanded.