In order to prolong network lifetime and improve the reliability, a constructive interference based low-power and reliable data collection protocol (CI-DC) for wireless sensor network is proposed. In CI-DC protocol, data gathering is achieved in a way that sensor nodes initiate flooding in a circular manner by using time division multiple access (TDMA) technology. In order to tackle this dilemma of time synchronization for TDMA, implicit time synchronization algorithm is improved to ensure the time alignment of sensor nodes carrying out constructive interference based flooding. Extensive simulations and testbed experiment results show that it achieves almost 100 % data collection. Compared with traditional classical data collection protocol CTP, CI-DC provides 2.2 times of energy-efficient collection while achieving end-to-end collection reliability. Evaluation has verified that the proposed is able to greatly improve network performance in terms of lifetime and reliability.