round-trip time：

winter in 1405A .D.-oct.in 1407

Main passing countries & regions

Champa, Siam ， Sumatra, Calicut, Ceylon Mt., etc

Events：

Java Events; built stele in Cochin ; seized pirate Chen Zuyi, etc

round-trip time：

winter in 1407A .D.-late summer in 1049

Main passing countries & regions

Champa, Java , Siam , Cochin , Calicut ,etc

Events：

interceded the problems among the countries, etc.

round-trip time：

Oct .1409 A .D.-July in 1411

Main passing countries & regions

Champa, Java , Siam , Cochin , Calicut ,etc

Events：

Built official storage & seized the king, etc

round-trip time：

winter in 1413 A .D.- Aug. in 1415

Main passing countries & regions

Java, Ceylon Mt. , Cochin , Calicut , etc

Events：

First to the east bank of the African countries; seized the local prince,etc.

round-trip time：

winter in 1417 A .D.-Aug. in 1419

Main passing countries & regions

Champa, Java, Ceylon Mt. , Cochin , Calicut , etc

Events：

The occident countries dedicated the lion, leopard and many rare Birds and animals, etc.

round-trip time：

spring in 1421 A .D.-Sept.in 1422

Main passing countries & regions

Champa, Java, Ceylon Mt. , Cochin , Calicut , etc

Events：

Get treasures & did trade

round-trip time：

Jan. in 1432 A .D.- Aug. in 1433

Main passing countries & regions

Champa, Java, Ceylon Mt. , Cochin , Calicut , etc

Events：

Rebuilt the the temple of the Celestial Spouse & set up the stele, etc