中文摘要：

技术多元化对于获取竞争优势十分重要，而技术多元化的前因探究又是当前技术多元化研究中一个较少涉及的领域。利用中国省级面板数据对技术多元化的前因进行了分析。研究结果表明，内部研发和外部技术获取可以增加技术多元化程度。加入调节变量后进一步发现，在科技发达地区获得外部技术更能够增加技术多元化程度，但不同地区在研发投入促进技术多元化方面没有显著差异。

英文摘要：

Technological diversification is the key to obtain competitiveness advantages, however, the research on the factors of technological diversification is scare. This paper takes advantages of provincial panel data to study the factors to promote technological diversification. The results indicate internal R＆amp;D and external technology acquisition can increase the degree of technological diversification. Moreover, when the moderating variable is added, the result also suggests： compared with less developed area, in the S＆amp;T-developed areas, external technology acquisition can lead to more degree of technological diversification, but no difference was found on the R＆amp;D investment’s implication. The empirical findings can supply theoretical evidence to promote technological diversifica-tion in practice.