Portable packing box and paperboard for assembling portable packing box

The invention relates to the field of portable packing boxes, in particular to a portable packing box and a paperboard for assembling the portable packing box. The portable packing box comprises an outer box assembly, an inner box assembly, protection assemblies, a balance assembly and a sealing assembly, wherein the inner box assembly, the protection assemblies, the balance assembly and the sealing assembly are all arranged inside the outer box component; the protection assemblies are arranged on the two sides of the inner box assembly; the balance assembly is arranged below the inner box assembly; the sealing assembly is arranged above the inner box assembly; and the outer box assembly comprises a base, a hinge and an outer box body. Through the balance assembly arranged below the innerbox assembly, even if a user holds one of two sets of pull wires by hand, the pull wire can drive one end of a balance supporting rod to extend upwards, the other end of the balance supporting rod ina warped plate form moves