The present invention provides a question distribution method and a question distribution system for a Q & A platform, wherein the method comprises: obtaining a question entering into a Q & A platform; determining a user suitable for answering the question based on a question distribution model, and distributing the question to a third party platform where the user suitable for answering the question is located, wherein the question distributing model is established with user data collected from the third party platform interfaced with the Q & A platform; obtaining an answer to the question from the third party platform, and providing the answer to the question to a user posing the question. The present invention extends the source of answering a question to a third party platform interfaced with the Q & A platform, which breaks the limitation of the original Q & A platform, so that a user more suitable for answering the question in the third party platform can provide an answer, thereby enhancing the probability of the question being timely answered.