Trnh by cc nguyn tc lp KH T v lm r s cn thit phi tun th cc nguyn tc ny trong cng tc lp KH T. Lin h thc tin thc t VNK hoch ha u t va l ni dung, va l mt cng c qun l hot ng u t. Cng tc k hoch ha u t phi qun trit c nhng nguyn tc ch yu sau:Th nht, k hoch ha u t phi da vo quy hoch, chin lc pht trin kinh t x hi ca quc gia, ngnh, a phng v c s. Th hai, k hoch ha u t phi xut pht t tnh hnh cung cu ca th trng. tn hiu th trng cho bit nn u t ci j, bao nhiu v u t khi no, nn nu thot ly th trng k hoch s cha ng nhng yu t khng kh thiTh trng ch gii quyt nhng vn c tnh ring l m khng tnh n tng th nh nc s dng k hoch lm cng c hng dn v iu chnh th trng nhm gn li ch ngn hn v di hn, gia s pht trin trc mt v pht trin lu diTh 3. Phi da vo kh nng huy ng ngun lc trong v ngoi nc. nu khng da vo kh nng huy ng th d n s khng kh thi v s ch l k hoch c mun.Th t, k hoch u t phi c mc ch r rng, v p ng g cho nn kinh t. Vit Nam, do ang bt u qu trnh cng nghip ha nn ngun lc khan him, khng th p ng c cng lc cc nhu cu pht trin. do vy cn chn mc tiu u tin tp trung nhng yu t khan him u t vo nhng lnh vc hiu qu nht v cp bch nht m khng u t dn tri.mt trong nhng nguyn nhn tht bi ca cng nghip ha trc y l k hoch thng qu tham vng, c gng thc hin nhiu mc ch cng lc, khng xt n nhng u tin mu thun nhauTh 5, k hoch phi c tnh lin tc v tnh gi uNhm trnh tnh trng cc d n u t dn tri. tnh lin tc th hin qua phng php cun chiu, m theo phng php ny khi lp k hoch 5 nm, ngi ta s xc nh nhng mc tiu tng th trong 5 nm . Tuy nhin h ch lp k hoch cho nm lin k v d bo k hoch cho 3 nm cn likhc phc tnh nht thi.Th 6, coi trng cng tc d boBn cht ca k hoch l hng n qu trnh tng lai. Lun gn vi cc hot ng d bo vi t cch l mt khu tin k hoch th d bo cn phi i trc to c s cho vic hoch nh chin lc, xc nh quy hoch, k hoch, chnh schTnh cho n nay, cng tc d bo v phn tch kinh t vn l khu quan trng nht trong ton b qu trnh lp k hoch hin nay. Cc c quan, b ti chnh, ngn hng c th t a ra quyt nh c lp trn tinh thn t chu trch nhimTh 7, phi m bo tnh khoa hc v ng b ca k hochK hoch phi mang tnh khch quan, t thc tin cuc sngPhi c cn c khoa hc, khng ch da vo mong mun ch quan ca ngi hoch nhkhi lp k hoch phi p dng rng ri cc m hnh d on kinh t- khoa hc c tnh nh lngTnh ng b: Phi ng b gia mc tiu u t vi nhng chnh sch i km v vi cc ngun lc c th s dng Phi m bo c cu u t hp l, gi c trng thi cn i gia cc b phn cu thnh nn kinh t Lp k hoch v thc hin k hoch phi c s phi hp thng nht v tng hp gia cc b ngnh, a phng.Th 8, k hoch phi c tnh linh hot v kp thiKhng nn quan nim k hoch ha ch n thun l vic son tho cc vn bn k hoch, m n phi l mt quy trnh lin tc v phc tp.. khng phi l k hoch cng nhc m phi ht sc mm do v linh hot ty tnh hnh bin i ca th trng, m vn m bo c mc tiu t ra.Th 9, y mnh cng tc k hoch ha u tTh 10, k hoch cn coi trng c tnh t ph to cho cc ngnh khc pht trin, nhng ngnh mang tnh ton vng, hoc ton quc m c nh hng n an ninh, quc phngv ngun vn u t ca nh ncthng qua k hoch trc tip. cc k hoch cn li th theo k hochnh hng.Th 11, k hoch u t ca nh nc phi m bo c nhng then cht ch yu v lnh vc ch yu ca nn kinh tTrong u t ca nh nc phi phn nh c s pht trin trong tng lai ca mi ngnh, a phng, mi lnh vc trong nn kinh t, v n phi phn nh c ton b mi hot ng u t cua mi thnh phn kinh t, c s nh hng, phn cng u t gia cc thnh phn kinh t hp l.Th 12, k hoch u t trc tip ca nh nc phi c xy dng theo nguyn tc t di ln.