The invention discloses a combination tail lamp integrating a side marker lamp and a rear position lamp, and a vehicle. The combination tail lamp comprises a lamp body and an outer lamp lens connectedwith the lamp body, a lamp cavity is formed by the outer lens and the lamp body, a decorative frame and an inner lamp lens are arranged in the lamp cavity, the inner lamp lens is arranged behind theouter lamp lens, and the decorative frame is arranged at the rear side of the inner lamp lens; an upper circuit board and a lower circuit board are fixed on the decorative frame; side marker lamp LEDmodules and rear position lamp LED modules at corresponding locations are fixed on the upper circuit board and the lower circuit board, the side marker lamp LED module is arranged close to the outsideof the vehicle body, and the rear position lamp LED module is arranged close to the inside of the vehicle body. The side marker lamp and the rear position lamp functions can be realized, the uniformity when the side marker lamp and the rear position lamp are lightened can be guaranteed, and the relevant law and regulations can be met.