A field variety screening experiment was carried out in the early rice season with 9 representative early japonica rice varieties from Northeast China and local main early indica rice Zhongzao 39 (control) as materials to screen early japonica rice varieties suitable for cultivation in Southeast Zhejiang. The grain yield and rice quality of different early japonica rice varieties in Southeast Zhejiang were observed, and the perspectives of the growth period, seedlings quality, tillering characteristics, and utilization of temperature and sunshine resources were compared. The results showed that the average yield of the 9 early japonica rice varieties tested was 14.5% lower than that of the control, only Zhenbaodao 1 increased and reached a significant level compared with Zhongzao 39. The reason for the reduction was related to the significant reduction of grains per panicle. The processing quality (except head milled rice rate), appearance quality and cooking quality of early japonica rice were better than those of the control, mainly in the indexes of brown rice rate, chalky grain rate, chalkiness, transparency, gel consistency and amylose content. Compared with Zhongzao39, the growth stages of early japonica rice were advanced and the growth period was shortened, the seedling quality was improved, the tillering ability was strong, and the effective tiller percentage, the sunshine hours and the effective accumulated temperature production efficiency were slightly decreased, but the effective accumulated temperature was significantly increased. According to the results of comprehensive comparative tests, Zhenbaodao 1, Longgeng 18-2, Longgeng 1656, Kongyu 131 and Tong 35 were suitable cultivated for double-cropping early rice in Southeast of Zhejiang.