The invention relates to a splice lithium battery bracket. The lithium battery bracket is formed by splicing a number of sub brackets. Each sub bracket comprises three lithium battery hole positions. A number of grooves are respectively arranged on both ends of the upper side and one side of each sub bracket. A number of protrusions are respectively arranged on both ends of the lower side and the other side of each sub bracket. Each groove and each protrusion are trapezoidal. The grooves and the protrusions have the same number and size. According to the lithium battery bracket provided by the invention, the original one-time injection molding is changed; the lithium battery bracket is formed by splicing a number of sub brackets; the length and the width of the bracket can be arbitrarily arranged according to the capacity of a battery; the splice lithium battery bracket is simple and convenient; the sub brackets are clamped through the trapezoidal grooves and protrusions, thus the firmness is high; the splice lithium battery bracket has the advantages of simple structure, reasonable design, easy processing, high firmness and good stability; and the sub brackets are clamped through the grooves and the protrusions.