  The main purpose of this paper is to consider the multiple birth properties
for multi-type Markov branching processes. We first construct a new
multi-dimensional Markov process based on the multi-type Markov branching
process, which can reveal the multiple birth characteristics. Then the joint
probability distribution of multiple birth of multi-type Markov branching
process until any time $t$ is obtained by using the new process. Furthermore,
the probability distribution of multiple birth until the extinction of the
process is also given.
