Portable outdoor cooking box assembly

The invention discloses a portable outdoor cooking box assembly. The portable outdoor cooking box assembly comprises a box, wherein a box cover is hinged onto the box; hasps are arranged on the box cover and the box; at least four buckles are arranged on the inner surface of the box cover; a tool, scissors, chopsticks and a spoon are clamped on the four buckles respectively; a water container is arranged on the right side in the box; a water outlet is formed in the box and communicated with the water container; a seal cover is in threaded connection with the water outlet; limit blocks are arranged in diagonal positions in the box; a wind screen is glidingly connected between the limit blocks and divides the inner space of the box into a space I and a space II, a stove is arranged in the space I, a cooker is arranged on the stove, a tank is arranged in the space II and connected with the stove through a gas pipe, the gas pipe is arranged on the wind screen, and back straps are connectedonto left and right side