The invention relates to a portable, economical and safe lifter with a vertical conveying function and an inclined conveying function. The lifter comprises a driving device, guide racks and a steel wire rope; the driving device is mounted on a bottom section fixedly arranged on the ground; a plurality of standard sections and a top section are sequentially and fixedly connected with an upper part of the bottom section so as to form a vertical guide rack, wherein the top section is provided with a reverse pulley; a plurality of attached racks fixed with a wall body are evenly distributed on the standard sections; a material trolley is mounted on the vertical guide rack so as to form a vertical conveying lifter; a direction-changing mechanism can also be fixedly connected with the very top end of the standard sections so as to form an inclined guide rack, wherein the top of the direction-changing mechanism is sequentially and fixedly connected with a plurality of standard sections and the top section; and a material trolley is mounted on the inclined guide rack so as to form an inclined conveying lifter. The lifter has the vertical conveying function and the inclined conveying function; materials can be conveyed to each storey, and the requirements on inclined roof surface construction can also be met through adjusting the angle of a joint bent frame; the bottom section and the standard sections are universal parts so as to be randomly assembled and sufficiently utilized; and the portable, economical and safe lifter with the vertical conveying function and the inclined conveying function has the advantages of convenience in mounting and erecting, simplicity and convenience in use, and safety and reliability, and the working intensity of construction workers can be lowered.